diff --git a/backend/AgentCoord/RehearsalEngine_V2/ExecutePlan_Optimized.py b/backend/AgentCoord/RehearsalEngine_V2/ExecutePlan_Optimized.py
index 44ae5af..c8150f5 100644
--- a/backend/AgentCoord/RehearsalEngine_V2/ExecutePlan_Optimized.py
+++ b/backend/AgentCoord/RehearsalEngine_V2/ExecutePlan_Optimized.py
@@ -428,7 +428,7 @@ def executePlan_streaming_dynamic(
             if execution_id:
                 # 动态模式：循环获取下一个步骤
                 # 等待新步骤的最大次数（避免无限等待）
-                max_empty_wait_cycles = 60  # 最多等待60次，每次等待1秒
+                max_empty_wait_cycles = 5  # 最多等待60次，每次等待1秒
                 empty_wait_count = 0
 
                 while True:
diff --git a/backend/server.py b/backend/server.py
index 0859717..1f603ec 100644
--- a/backend/server.py
+++ b/backend/server.py
@@ -18,6 +18,7 @@ from AgentCoord.PlanEngine.AgentSelectModify import (
 import os
 import yaml
 import argparse
+from typing import List, Dict
 
 # initialize global variables
 yaml_file = os.path.join(os.getcwd(), "config", "config.yaml")
@@ -39,6 +40,40 @@ app.config['SECRET_KEY'] = 'agentcoord-secret-key'
 socketio = SocketIO(app, cors_allowed_origins="*", async_mode='threading')
 
 
+def truncate_rehearsal_log(RehearsalLog: List, restart_from_step_index: int) -> List:
+    """
+    截断 RehearsalLog，只保留指定索引之前的步骤结果
+
+    Args:
+        RehearsalLog: 原始日志列表
+        restart_from_step_index: 重新执行的起始步骤索引（例如：1 表示保留步骤0，从步骤1重新执行）
+
+    Returns:
+        截断后的 RehearsalLog
+
+    示例:
+        restart_from_step_index = 1
+        RehearsalLog = [step0, object0, step1, object1, step2, object2]
+        返回 = [step0, object0]  # 只保留步骤0的结果
+    """
+    truncated_log = []
+    step_count = 0
+
+    for logNode in RehearsalLog:
+        if logNode.get("LogNodeType") == "step":
+            # 只保留 restart_from_step_index 之前的步骤
+            if step_count < restart_from_step_index:
+                truncated_log.append(logNode)
+            step_count += 1
+        elif logNode.get("LogNodeType") == "object":
+            # object 节点：如果对应的 step 在保留范围内，保留它
+            # 策略：保留所有在截断点之前的 object
+            if step_count <= restart_from_step_index:
+                truncated_log.append(logNode)
+
+    return truncated_log
+
+
 @app.route("/fill_stepTask_TaskProcess", methods=["post"])
 def Handle_fill_stepTask_TaskProcess():
     incoming_data = request.get_json()
@@ -412,7 +447,7 @@ def handle_ping():
 def handle_execute_plan_optimized_ws(data):
     """
     WebSocket版本：优化版流式执行计划
-    支持步骤级流式 + 动作级智能并行 + 动态追加步骤
+    支持步骤级流式 + 动作级智能并行 + 动态追加步骤 + 从指定步骤重新执行
 
     请求格式：
     {
@@ -422,7 +457,8 @@ def handle_execute_plan_optimized_ws(data):
             "plan": {...},
             "num_StepToRun": null,
             "RehearsalLog": [],
-            "enable_dynamic": true  # 是否启用动态追加步骤
+            "enable_dynamic": true,  # 是否启用动态追加步骤
+            "restart_from_step_index": 1  # 可选：从指定步骤重新执行（例如1表示从步骤2重新执行）
         }
     }
     """
@@ -434,6 +470,13 @@ def handle_execute_plan_optimized_ws(data):
         num_StepToRun = incoming_data.get("num_StepToRun")
         RehearsalLog = incoming_data.get("RehearsalLog", [])
         enable_dynamic = incoming_data.get("enable_dynamic", False)
+        restart_from_step_index = incoming_data.get("restart_from_step_index")  # 新增：支持从指定步骤重新执行
+
+        # 如果指定了重新执行起始步骤，截断 RehearsalLog
+        if restart_from_step_index is not None:
+            print(f"🔄 从步骤 {restart_from_step_index + 1} 重新执行，正在截断 RehearsalLog...")
+            RehearsalLog = truncate_rehearsal_log(RehearsalLog, restart_from_step_index)
+            print(f"✅ RehearsalLog 已截断，保留 {sum(1 for node in RehearsalLog if node.get('LogNodeType') == 'step')} 个步骤的结果")
 
         # 如果前端传入了execution_id，使用前端的；否则生成新的
         execution_id = incoming_data.get("execution_id")
@@ -1650,6 +1693,66 @@ def handle_resume_execution(data):
         })
 
 
+@socketio.on('stop_execution')
+def handle_stop_execution(data):
+    """
+    WebSocket版本：停止任务执行
+
+    请求格式：
+    {
+        "id": "request-id",
+        "action": "stop_execution",
+        "data": {
+            "goal": "任务描述"
+        }
+    }
+    """
+    request_id = data.get('id')
+    incoming_data = data.get('data', {})
+
+    try:
+        from AgentCoord.RehearsalEngine_V2.execution_state import execution_state_manager
+
+        goal = incoming_data.get('goal', '')
+
+        # 检查当前执行的任务是否匹配
+        current_goal = execution_state_manager.get_goal()
+        if current_goal and current_goal != goal:
+            print(f"⚠️  任务目标不匹配: 当前={current_goal}, 请求={goal}")
+            emit('response', {
+                'id': request_id,
+                'status': 'error',
+                'error': '任务目标不匹配'
+            })
+            return
+
+        # 调用执行状态管理器停止
+        success = execution_state_manager.stop_execution()
+
+        if success:
+            print(f"🛑 [DEBUG] 停止成功! 当前状态: {execution_state_manager.get_status().value}")
+            print(f"🛑 [DEBUG] should_stop: {execution_state_manager._should_stop}")
+            emit('response', {
+                'id': request_id,
+                'status': 'success',
+                'data': {"message": "已停止执行"}
+            })
+        else:
+            print(f"⚠️  [DEBUG] 停止失败，当前状态: {execution_state_manager.get_status().value}")
+            emit('response', {
+                'id': request_id,
+                'status': 'error',
+                'error': f'无法停止，当前状态: {execution_state_manager.get_status().value}'
+            })
+
+    except Exception as e:
+        print(f"❌ 停止执行失败: {str(e)}")
+        emit('response', {
+            'id': request_id,
+            'status': 'error',
+            'error': str(e)
+        })
+
 
 if __name__ == "__main__":
     parser = argparse.ArgumentParser(
diff --git a/frontend/components.d.ts b/frontend/components.d.ts
index a901abc..ab2fb32 100644
--- a/frontend/components.d.ts
+++ b/frontend/components.d.ts
@@ -16,15 +16,16 @@ declare module 'vue' {
     ElCard: typeof import('element-plus/es')['ElCard']
     ElCollapse: typeof import('element-plus/es')['ElCollapse']
     ElCollapseItem: typeof import('element-plus/es')['ElCollapseItem']
-    ElDialog: typeof import('element-plus/es')['ElDialog']
-    ElDivider: typeof import('element-plus/es')['ElDivider']
     ElDrawer: typeof import('element-plus/es')['ElDrawer']
     ElEmpty: typeof import('element-plus/es')['ElEmpty']
+    ElIcon: typeof import('element-plus/es')['ElIcon']
     ElInput: typeof import('element-plus/es')['ElInput']
     ElPopover: typeof import('element-plus/es')['ElPopover']
     ElScrollbar: typeof import('element-plus/es')['ElScrollbar']
+    ElTag: typeof import('element-plus/es')['ElTag']
     ElTooltip: typeof import('element-plus/es')['ElTooltip']
     MultiLineTooltip: typeof import('./src/components/MultiLineTooltip/index.vue')['default']
+    Notification: typeof import('./src/components/Notification/Notification.vue')['default']
     RouterLink: typeof import('vue-router')['RouterLink']
     RouterView: typeof import('vue-router')['RouterView']
     SvgIcon: typeof import('./src/components/SvgIcon/index.vue')['default']
diff --git a/frontend/src/api/index.ts b/frontend/src/api/index.ts
index 75099c9..2da1c98 100644
--- a/frontend/src/api/index.ts
+++ b/frontend/src/api/index.ts
@@ -180,15 +180,18 @@ class Api {
     enableDynamic?: boolean,
     onExecutionStarted?: (executionId: string) => void,
     executionId?: string,
+    restartFromStepIndex?: number,  // 新增：从指定步骤重新执行的索引
+    rehearsalLog?: any[],  // 新增：传递截断后的 RehearsalLog
   ) => {
     const useWs = useWebSocket !== undefined ? useWebSocket : this.useWebSocketDefault
 
     const data = {
-      RehearsalLog: [],
+      RehearsalLog: rehearsalLog || [],  // ✅ 使用传递的 RehearsalLog
       num_StepToRun: null,
       existingKeyObjects: existingKeyObjects || {},
       enable_dynamic: enableDynamic || false,
       execution_id: executionId || null,
+      restart_from_step_index: restartFromStepIndex ?? null,  // 新增：传递重新执行索引
       plan: {
         'Initial Input Object': plan['Initial Input Object'],
         'General Goal': plan['General Goal'],
diff --git a/frontend/src/layout/components/Main/TaskTemplate/TaskResult/index.vue b/frontend/src/layout/components/Main/TaskTemplate/TaskResult/index.vue
index c0c1182..29d7892 100644
--- a/frontend/src/layout/components/Main/TaskTemplate/TaskResult/index.vue
+++ b/frontend/src/layout/components/Main/TaskTemplate/TaskResult/index.vue
@@ -2,7 +2,6 @@
 import { computed, onUnmounted, ref, reactive, nextTick, watch, onMounted } from 'vue'
 import { throttle } from 'lodash'
 import { AnchorLocations, BezierConnector } from '@jsplumb/browser-ui'
-import { ElMessageBox } from 'element-plus'
 import AdditionalOutputCard from './AdditionalOutputCard.vue'
 import SvgIcon from '@/components/SvgIcon/index.vue'
 import { getActionTypeDisplay, getAgentMapIcon } from '@/layout/components/config.ts'
@@ -42,6 +41,7 @@ const stepExecutionStatus = ref<Record<string, StepExecutionStatus>>({})
 
 // 用于标记暂停时的"最后动作完成"状态
 const isPausing = ref(false) // 正在请求暂停（等待当前动作完成）
+const isRestarting = ref(false) // 正在重新执行（停止旧执行导致的错误不应显示）
 
 // Check if step is ready to execute (has TaskProcess data)
 const isStepReady = (step: IRawStepTask) => {
@@ -211,7 +211,23 @@ function handleSaveEdit(stepId: string, processId: string, value: string) {
   if (step) {
     const process = step.TaskProcess.find(p => p.ID === processId)
     if (process) {
-      process.Description = value
+      // 保存旧值用于比较
+      const oldValue = process.Description
+
+      // 只有内容真正变化时才更新和记录修改
+      if (value !== oldValue) {
+        process.Description = value
+        // 记录修改过的步骤索引到 store
+        const stepIndex = collaborationProcess.value.findIndex(s => s.Id === stepId)
+        if (stepIndex >= 0) {
+          agentsStore.addModifiedStep(stepIndex)
+          console.log(
+            `📝 步骤 ${stepIndex + 1} (${step.StepName}) 的描述已被修改，将从该步骤重新执行`
+          )
+        }
+      } else {
+        console.log(`ℹ️ 步骤 ${step.StepName} 的描述未发生变化，不记录修改`)
+      }
     }
   }
   editMap[key] = false
@@ -341,7 +357,6 @@ const executionProgress = ref({
 const {
   notifications,
   progress: showProgress,
-  updateProgress,
   updateProgressDetail,
   success,
   info,
@@ -457,9 +472,12 @@ async function executeNextReadyBatch() {
               switch (event.type) {
                 case 'step_start':
                   // 使用全局步骤索引计算当前步骤
-                  const globalStepIndex = collaborationProcess.value.findIndex(s => s.StepName === event.step_name)
+                  const globalStepIndex = collaborationProcess.value.findIndex(
+                    s => s.StepName === event.step_name
+                  )
                   executionProgress.value = {
-                    currentStep: globalStepIndex >= 0 ? globalStepIndex + 1 : (event.step_index || 0) + 1,
+                    currentStep:
+                      globalStepIndex >= 0 ? globalStepIndex + 1 : (event.step_index || 0) + 1,
                     totalSteps: collaborationProcess.value.length,
                     currentAction: 0,
                     totalActions: 0,
@@ -495,8 +513,13 @@ async function executeNextReadyBatch() {
                     : ''
 
                   // 使用全局步骤索引
-                  const globalStepIndexForAction = collaborationProcess.value.findIndex(s => s.StepName === event.step_name)
-                  const stepIndexForAction = globalStepIndexForAction >= 0 ? globalStepIndexForAction + 1 : (event.step_index || 0) + 1
+                  const globalStepIndexForAction = collaborationProcess.value.findIndex(
+                    s => s.StepName === event.step_name
+                  )
+                  const stepIndexForAction =
+                    globalStepIndexForAction >= 0
+                      ? globalStepIndexForAction + 1
+                      : (event.step_index || 0) + 1
                   const totalStepsValue = collaborationProcess.value.length
 
                   executionProgress.value = {
@@ -594,6 +617,13 @@ async function executeNextReadyBatch() {
                   const errorMessage = event.message || event.error || '未知错误'
                   console.error('执行错误:', errorMessage)
 
+                  // 如果正在重新执行，不显示错误通知（因为旧执行的步骤中断是预期的）
+                  if (isRestarting.value) {
+                    console.log('ℹ️  正在重新执行，忽略旧执行的中断错误')
+                    resolve() // 正常完成，不显示错误
+                    return
+                  }
+
                   // 关闭进度通知并显示错误通知
                   if (currentProgressNotificationId.value) {
                     removeNotification(currentProgressNotificationId.value)
@@ -614,6 +644,13 @@ async function executeNextReadyBatch() {
             (err: Error) => {
               console.error('流式执行错误:', err)
 
+              // 如果正在重新执行，不显示错误通知（因为旧执行的步骤中断是预期的）
+              if (isRestarting.value) {
+                console.log('ℹ️  正在重新执行，忽略旧执行的中断错误')
+                resolve() // 正常完成，不显示错误
+                return
+              }
+
               // 关闭进度通知并显示错误通知
               if (currentProgressNotificationId.value) {
                 removeNotification(currentProgressNotificationId.value)
@@ -695,7 +732,25 @@ function removeNotification(id: string) {
 // Pause/Resume handler
 async function handlePauseResume() {
   if (isPaused.value) {
-    // Resume execution - 正常恢复执行
+    // Resume execution - 检查是否有修改的步骤
+    if (agentsStore.hasModifiedSteps()) {
+      // 有修改的步骤，必须从最早修改的步骤重新执行
+      // 因为步骤之间是串行依赖的，修改了步骤2会导致步骤2-6都需要重新执行
+      const earliestModifiedIndex = Math.min(...agentsStore.modifiedSteps)
+      const modifiedStepName =
+        collaborationProcess.value[earliestModifiedIndex]?.StepName ||
+        `步骤${earliestModifiedIndex + 1}`
+
+      console.log(`🔄 从步骤 ${earliestModifiedIndex + 1} (${modifiedStepName}) 重新执行`)
+      success('开始重新执行', `检测到步骤修改，从步骤 ${earliestModifiedIndex + 1} 重新执行`)
+
+      // 直接调用重新执行函数
+      await restartFromStep(earliestModifiedIndex)
+
+      return
+    }
+
+    // 正常恢复执行（没有修改）
     try {
       if (websocket.connected) {
         await websocket.send('resume_execution', {
@@ -739,6 +794,371 @@ async function handlePauseResume() {
   }
 }
 
+// ==================== 重新执行功能 ====================
+
+/**
+ * 从RehearsalLog中提取KeyObjects
+ * @param rehearsalLog RehearsalLog数组
+ * @returns KeyObjects字典
+ */
+function buildKeyObjectsFromLog(rehearsalLog: any[]): Record<string, any> {
+  const keyObjects: Record<string, any> = {}
+
+  for (const logNode of rehearsalLog) {
+    if (logNode.LogNodeType === 'object' && logNode.content) {
+      keyObjects[logNode.NodeId] = logNode.content
+    }
+  }
+
+  return keyObjects
+}
+
+/**
+ * 构建截断后的 RehearsalLog（使用步骤名称匹配）
+ * @param restartFromStepIndex 重新执行的起始步骤索引（例如：1 表示从步骤2重新执行）
+ * @returns 截断后的 RehearsalLog
+ */
+function buildTruncatedRehearsalLog(restartFromStepIndex: number) {
+  const steps = agentsStore.agentRawPlan.data?.['Collaboration Process'] || []
+  const truncatedLog: any[] = []
+
+  for (const logNode of agentsStore.executePlan) {
+    if (logNode.LogNodeType === 'step') {
+      const stepIndex = steps.findIndex((s: any) => s.StepName === logNode.NodeId)
+      if (stepIndex >= 0 && stepIndex < restartFromStepIndex) {
+        truncatedLog.push(logNode)
+      }
+    } else if (logNode.LogNodeType === 'object') {
+      const stepIndex = steps.findIndex((s: any) => s.OutputObject === logNode.NodeId)
+      if (stepIndex >= 0 && stepIndex < restartFromStepIndex) {
+        truncatedLog.push(logNode)
+      }
+    }
+  }
+
+  return truncatedLog
+}
+
+/**
+ * 清除执行结果中指定步骤及之后的记录
+ * @param fromStepIndex 起始步骤索引
+ */
+function clearExecutionResults(fromStepIndex: number) {
+  const steps = agentsStore.agentRawPlan.data?.['Collaboration Process'] || []
+
+  // 过滤掉要重新执行的步骤及其之后的所有步骤
+  agentsStore.executePlan = agentsStore.executePlan.filter(logNode => {
+    if (logNode.LogNodeType === 'step') {
+      // 找到该步骤在原始步骤列表中的索引
+      const stepIndex = steps.findIndex((s: any) => s.StepName === logNode.NodeId)
+      return stepIndex < fromStepIndex
+    }
+    // 对于 object 节点，也需要判断
+    if (logNode.LogNodeType === 'object') {
+      // 找到该 object 对应的步骤索引
+      const stepIndex = steps.findIndex((s: any) => s.OutputObject === logNode.NodeId)
+      return stepIndex < fromStepIndex
+    }
+    return true
+  })
+}
+
+/**
+ * 重置步骤执行状态
+ * @param fromStepIndex 起始步骤索引
+ */
+function resetStepStatus(fromStepIndex: number) {
+  const steps = agentsStore.agentRawPlan.data?.['Collaboration Process'] || []
+
+  for (let i = fromStepIndex; i < steps.length; i++) {
+    const step = steps[i]
+    if (!step) continue
+    const stepName = step.StepName || step.Id || ''
+    stepExecutionStatus.value[stepName] = StepExecutionStatus.READY
+  }
+}
+
+/**
+ * 从指定步骤重新执行
+ * @param stepIndex 要重新执行的步骤索引（例如：1 表示从步骤2重新执行）
+ */
+async function restartFromStep(stepIndex: number) {
+  try {
+    loading.value = true
+    isRestarting.value = true // 标记正在重新执行
+
+    // 清空修改记录（避免重复执行）
+    agentsStore.clearModifiedSteps()
+
+    // 0. 先停止旧的执行（避免双重执行）
+    if (websocket.connected && currentExecutionId.value) {
+      try {
+        console.log('🛑 停止旧的执行任务，避免双重执行')
+        const stopResponse = await websocket.send('stop_execution', {
+          goal: agentsStore.agentRawPlan.data?.['General Goal'] || ''
+        })
+        console.log('✅ 后端确认停止:', stopResponse)
+        // 等待一下确保后端完全停止
+        await new Promise(resolve => setTimeout(resolve, 1000))
+      } catch (err) {
+        console.warn('⚠️ 停止旧执行失败（可能已经停止）:', err)
+      }
+    }
+
+    // 1. 构建截断后的 RehearsalLog
+    const truncatedLog = buildTruncatedRehearsalLog(stepIndex)
+
+    // 2. 从截断日志中提取 KeyObjects
+    const existingKeyObjects = buildKeyObjectsFromLog(truncatedLog)
+
+    console.log('📦 传递给后端的数据:', {
+      truncatedLogLength: truncatedLog.length,
+      keyObjectsCount: Object.keys(existingKeyObjects).length,
+      keyObjectsKeys: Object.keys(existingKeyObjects)
+    })
+
+    // 3. 清除前端执行结果中指定步骤及之后的记录
+    clearExecutionResults(stepIndex)
+
+    // 3.5 关闭旧的进度通知（避免通知混乱）
+    if (currentProgressNotificationId.value) {
+      removeNotification(currentProgressNotificationId.value)
+      currentProgressNotificationId.value = null
+    }
+
+    // 4. 重置步骤状态
+    resetStepStatus(stepIndex)
+
+    // 4.5 强制触发 Vue 响应式更新
+    nextTick(() => {
+      // 触发 UI 更新
+    })
+
+    // 5. 重置执行状态为执行中
+    isPaused.value = false
+    isStreaming.value = true
+    loading.value = true
+
+    // 6. 调用执行 API，传递截断后的 RehearsalLog 和 KeyObjects
+    api.executePlanOptimized(
+      agentsStore.agentRawPlan.data!,
+      // onMessage - 使用内联函数处理事件
+      (event: StreamingEvent) => {
+        // 如果正在暂停（isPausing）或已暂停（isPaused），只允许特定事件
+        // 这样可以确保当前正在完成的动作的结果能够被正确保存
+        if (isPausing.value || isPaused.value) {
+          if (
+            event.type !== 'action_complete' &&
+            event.type !== 'step_complete' &&
+            event.type !== 'error'
+          ) {
+            return
+          }
+        }
+
+        switch (event.type) {
+          case 'step_start':
+            stepExecutionStatus.value[event.step_name] = StepExecutionStatus.RUNNING
+
+            // 使用全局步骤索引计算当前步骤
+            const globalStepIndex = collaborationProcess.value.findIndex(
+              s => s.StepName === event.step_name
+            )
+            const currentStepNumber =
+              globalStepIndex >= 0 ? globalStepIndex + 1 : (event.step_index || 0) + 1
+
+            // 创建或更新进度通知
+            if (!currentProgressNotificationId.value) {
+              currentProgressNotificationId.value = showProgress(
+                '重新执行中',
+                currentStepNumber,
+                collaborationProcess.value.length
+              )
+              updateProgressDetail(
+                currentProgressNotificationId.value,
+                `步骤 ${currentStepNumber}/${collaborationProcess.value.length}`,
+                `正在执行: ${event.step_name}`
+              )
+            } else {
+              updateProgressDetail(
+                currentProgressNotificationId.value,
+                `步骤 ${currentStepNumber}/${collaborationProcess.value.length}`,
+                `正在执行: ${event.step_name}`,
+                currentStepNumber,
+                collaborationProcess.value.length
+              )
+            }
+            break
+
+          case 'action_complete':
+            // 检测是否正在暂停（等待当前动作完成）
+            if (isPausing.value) {
+              // 当前动作完成，完成暂停
+              isPaused.value = true
+              isPausing.value = false
+              success('已暂停', '已暂停执行，可稍后继续')
+            }
+
+            // 实时更新store
+            const existingStep = collaborationProcess.value.find(
+              s => s.StepName === event.step_name
+            )
+            if (existingStep) {
+              const currentResults = agentsStore.executePlan
+              const stepLogNode = currentResults.find(
+                r => r.NodeId === event.step_name && r.LogNodeType === 'step'
+              )
+              if (!stepLogNode) {
+                const newStepLog = {
+                  LogNodeType: 'step',
+                  NodeId: event.step_name,
+                  InputName_List: existingStep.InputObject_List || [],
+                  OutputName: existingStep.OutputObject || '',
+                  chatLog: [],
+                  inputObject_Record: [],
+                  ActionHistory: [event.action_result]
+                }
+                agentsStore.setExecutePlan([...currentResults, newStepLog])
+              } else {
+                stepLogNode.ActionHistory.push(event.action_result)
+                agentsStore.setExecutePlan([...currentResults])
+              }
+            }
+
+            // 使用全局步骤索引
+            const globalStepIndexForAction = collaborationProcess.value.findIndex(
+              s => s.StepName === event.step_name
+            )
+            const stepNumberForAction =
+              globalStepIndexForAction >= 0
+                ? globalStepIndexForAction + 1
+                : (event.step_index || 0) + 1
+
+            // 更新进度通知
+            if (currentProgressNotificationId.value) {
+              const parallelInfo = event.batch_info?.is_parallel
+                ? ` [并行 ${event.batch_info!.batch_size} 个动作]`
+                : ''
+
+              updateProgressDetail(
+                currentProgressNotificationId.value,
+                `步骤 ${stepNumberForAction}/${collaborationProcess.value.length}`,
+                `${event.step_name} - 动作 ${event.completed_actions}/${event.total_actions} 完成${parallelInfo}`,
+                stepNumberForAction,
+                collaborationProcess.value.length
+              )
+            }
+            break
+
+          case 'step_complete':
+            stepExecutionStatus.value[event.step_name] = StepExecutionStatus.COMPLETED
+
+            // 更新完整步骤日志
+            const currentResults = agentsStore.executePlan
+            const existingLog = currentResults.find(
+              r => r.NodeId === event.step_name && r.LogNodeType === 'step'
+            )
+            if (existingLog) {
+              existingLog.ActionHistory = event.step_log_node.ActionHistory
+              agentsStore.setExecutePlan([...currentResults])
+            } else if (event.step_log_node) {
+              agentsStore.setExecutePlan([...currentResults, event.step_log_node])
+            }
+            // 添加object_log_node
+            const updatedResults = agentsStore.executePlan
+            if (event.object_log_node) {
+              agentsStore.setExecutePlan([...updatedResults, event.object_log_node])
+            }
+            break
+
+          case 'execution_complete':
+            const steps = collaborationProcess.value
+            steps.forEach(step => {
+              const stepName = step.StepName || step.Id || ''
+              if (stepExecutionStatus.value[stepName] !== StepExecutionStatus.COMPLETED) {
+                stepExecutionStatus.value[stepName] = StepExecutionStatus.COMPLETED
+              }
+            })
+
+            // 关闭进度通知并显示完成通知
+            if (currentProgressNotificationId.value) {
+              removeNotification(currentProgressNotificationId.value)
+              currentProgressNotificationId.value = null
+            }
+
+            success('重新执行完成', `所有步骤已执行完成`, { duration: 3000 })
+            loading.value = false
+            isPaused.value = false
+            isStreaming.value = false
+            break
+
+          case 'error':
+            const errorMessage = event.message || '未知错误'
+            console.error('重新执行错误:', errorMessage)
+
+            // 关闭进度通知
+            if (currentProgressNotificationId.value) {
+              removeNotification(currentProgressNotificationId.value)
+              currentProgressNotificationId.value = null
+            }
+
+            // 静默处理所有错误，不显示任何通知
+            loading.value = false
+            isPaused.value = false
+            isStreaming.value = false
+            isRestarting.value = false // 重新执行结束
+            break
+        }
+      },
+      // onError
+      (err: Error) => {
+        console.error('重新执行错误:', err)
+
+        // 关闭进度通知
+        if (currentProgressNotificationId.value) {
+          removeNotification(currentProgressNotificationId.value)
+          currentProgressNotificationId.value = null
+        }
+
+        // 静默处理所有错误，不显示任何通知
+        loading.value = false
+        isPaused.value = false
+        isStreaming.value = false
+        isRestarting.value = false // 重新执行结束
+      },
+      // onComplete
+      () => {
+        // 关闭进度通知
+        if (currentProgressNotificationId.value) {
+          removeNotification(currentProgressNotificationId.value)
+          currentProgressNotificationId.value = null
+        }
+
+        loading.value = false
+        isPaused.value = false
+        isStreaming.value = false
+        isRestarting.value = false // 重新执行结束
+      },
+      true, // useWebSocket
+      existingKeyObjects, // ✅ 传递从截断日志中提取的KeyObjects
+      true, // enableDynamic
+      (executionId: string) => {
+        currentExecutionId.value = executionId
+      },
+      undefined, // executionId
+      stepIndex, // restartFromStepIndex
+      truncatedLog // ✅ 传递截断后的 RehearsalLog
+    )
+
+    success('重新执行', `正在从步骤 ${stepIndex + 1} 重新执行...`)
+  } catch (err) {
+    console.error('重新执行失败:', err)
+    error('重新执行失败', '无法启动重新执行')
+    loading.value = false
+    isRestarting.value = false // 重新执行失败，也要重置标记
+  }
+}
+
 // Handle execute button click
 async function handleExecuteButtonClick() {
   // If streaming, show pause/resume functionality
@@ -757,16 +1177,12 @@ async function handleRun() {
   const waitingSteps = stepsReadyStatus.value.waiting
 
   if (readySteps.length === 0 && waitingSteps.length > 0) {
-    ElMessageBox.confirm(
-      `All ${waitingSteps.length} steps的数据还在填充中：\n\n${waitingSteps.join(
+    warning(
+      '步骤数据未就绪',
+      `${waitingSteps.length} 个步骤的数据还在填充中：${waitingSteps.join(
         '、'
-      )}\n\n建议等待数据填充完成后再执行。`,
-      'Step data not ready',
-      {
-        confirmButtonText: 'I Understand',
-        cancelButtonText: 'Close',
-        type: 'warning'
-      }
+      )}。建议等待数据填充完成后再执行。`,
+      { duration: 5000 }
     )
     return
   }
diff --git a/frontend/src/layout/components/Main/TaskTemplate/TaskSyllabus/index.vue b/frontend/src/layout/components/Main/TaskTemplate/TaskSyllabus/index.vue
index 115944d..88069bc 100644
--- a/frontend/src/layout/components/Main/TaskTemplate/TaskSyllabus/index.vue
+++ b/frontend/src/layout/components/Main/TaskTemplate/TaskSyllabus/index.vue
@@ -201,7 +201,23 @@ const saveEditing = () => {
   if (editingTaskId.value && editingContent.value.trim()) {
     const taskToUpdate = collaborationProcess.value.find(item => item.Id === editingTaskId.value)
     if (taskToUpdate) {
-      taskToUpdate.TaskContent = editingContent.value.trim()
+      // 保存旧值用于比较
+      const oldValue = taskToUpdate.TaskContent
+      const newValue = editingContent.value.trim()
+
+      // 只有内容真正变化时才更新和记录修改
+      if (newValue !== oldValue) {
+        taskToUpdate.TaskContent = newValue
+
+        // 记录修改过的步骤索引到 store（用于重新执行）
+        const stepIndex = collaborationProcess.value.findIndex(item => item.Id === editingTaskId.value)
+        if (stepIndex >= 0) {
+          agentsStore.addModifiedStep(stepIndex)
+          console.log(`📝 步骤 ${stepIndex + 1} (${taskToUpdate.StepName}) 的 TaskContent 已被修改，将从该步骤重新执行`)
+        }
+      } else {
+        console.log(`ℹ️ 步骤 ${taskToUpdate.StepName} 的 TaskContent 未发生变化，不记录修改`)
+      }
     }
   }
   editingTaskId.value = null
diff --git a/frontend/src/stores/modules/agents.ts b/frontend/src/stores/modules/agents.ts
index 009dad7..6ce9216 100644
--- a/frontend/src/stores/modules/agents.ts
+++ b/frontend/src/stores/modules/agents.ts
@@ -221,6 +221,19 @@ export const useAgentsStore = defineStore('agents', () => {
 
   // 当前的展示的任务流程
   const currentTask = ref<IRawStepTask>()
+
+  // 记录用户修改过的步骤索引（用于重新执行）
+  const modifiedSteps = ref<Set<number>>(new Set())
+  function addModifiedStep(stepIndex: number) {
+    modifiedSteps.value.add(stepIndex)
+  }
+  function clearModifiedSteps() {
+    modifiedSteps.value.clear()
+  }
+  function hasModifiedSteps() {
+    return modifiedSteps.value.size > 0
+  }
+
   function setCurrentTask(task: IRawStepTask) {
     const existingTask = currentTask.value
 
@@ -472,6 +485,11 @@ export const useAgentsStore = defineStore('agents', () => {
     // 停止填充状态
     hasStoppedFilling,
     setHasStoppedFilling,
+    // 重新执行相关
+    modifiedSteps,
+    addModifiedStep,
+    clearModifiedSteps,
+    hasModifiedSteps,
   }
 })