diff --git a/frontend/src/layout/components/Main/Task.vue b/frontend/src/layout/components/Main/Task.vue
index 9e65b61..5a06500 100644
--- a/frontend/src/layout/components/Main/Task.vue
+++ b/frontend/src/layout/components/Main/Task.vue
@@ -309,6 +309,21 @@ async function handleSearch() {
         }
       )
     }
+
+    // 填充完成后，重新保存分支数据（同步最新的大纲数据）
+    // 只有在没有停止且成功完成时才执行
+    if (isFillingSteps.value && !agentsStore.isStopping && fillTaskTaskID) {
+      try {
+        // 先从主大纲同步最新数据到分支
+        const mainOutlineTasks = agentsStore.agentRawPlan.data?.['Collaboration Process'] || []
+        selectionStore.syncBranchTasksFromMainOutline(mainOutlineTasks)
+        // 再保存到数据库
+        await selectionStore.saveBranchesToDB(fillTaskTaskID)
+        console.log('✅ 步骤填充完成，分支数据已同步更新')
+      } catch (error) {
+        console.error('同步分支数据失败:', error)
+      }
+    }
   } finally {
     // 重置状态（确保即使出错也会执行）
     triggerOnFocus.value = true
diff --git a/frontend/src/layout/components/Main/TaskTemplate/TaskSyllabus/Branch/PlanModification.vue b/frontend/src/layout/components/Main/TaskTemplate/TaskSyllabus/Branch/PlanModification.vue
index 6404c4a..eb97292 100644
--- a/frontend/src/layout/components/Main/TaskTemplate/TaskSyllabus/Branch/PlanModification.vue
+++ b/frontend/src/layout/components/Main/TaskTemplate/TaskSyllabus/Branch/PlanModification.vue
@@ -555,6 +555,26 @@ onMounted(() => {
   isMounted.value = true
   initializeFlow()
 
+  // 如果没有选中任何节点，根据当前显示的任务步骤来高亮
+  if (selectedNodeIds.value.size === 0) {
+    const currentTasks = agentsStore.agentRawPlan.data?.['Collaboration Process'] || []
+
+    if (currentTasks.length > 0) {
+      // 找到当前任务对应的节点 ID
+      const currentTaskIds = currentTasks.map((task: any) => task.Id)
+      const nodesToHighlight = nodes.value
+        .filter(node => {
+          const nodeTaskId = node.data?.task?.Id || ''
+          return currentTaskIds.includes(nodeTaskId)
+        })
+        .map(node => node.id)
+
+      if (nodesToHighlight.length > 0) {
+        selectedNodeIds.value = new Set(nodesToHighlight)
+      }
+    }
+  }
+
   // 同步 currentTask 数据
   if (agentsStore.currentTask && agentsStore.currentTask.StepName) {
     const matchedNodes = nodes.value.filter(node => {
@@ -1199,7 +1219,8 @@ const handleAddBranch = async (taskId: string, branchContent: string) => {
           try {
             const filledTask = await api.fillStepTask({
               goal: generalGoal,
-              stepTask: task
+              stepTask: task,
+              TaskID: (window as any).__CURRENT_TASK_ID__ || ''
             })
 
             // 更新任务的 AgentSelection 和 TaskProcess
@@ -1466,7 +1487,8 @@ const handleAddBranch = async (taskId: string, branchContent: string) => {
           try {
             const filledTask = await api.fillStepTask({
               goal: generalGoal,
-              stepTask: task
+              stepTask: task,
+              TaskID: (window as any).__CURRENT_TASK_ID__ || ''
             })
 
             // 更新任务的 AgentSelection 和 TaskProcess
diff --git a/frontend/src/stores/modules/selection.ts b/frontend/src/stores/modules/selection.ts
index f6a9630..03fabb5 100644
--- a/frontend/src/stores/modules/selection.ts
+++ b/frontend/src/stores/modules/selection.ts
@@ -71,6 +71,45 @@ export const useSelectionStore = defineStore('selection', () => {
     return flowBranches.value
   }
 
+  /**
+   * 从主大纲同步最新的任务数据到分支的 tasks 中
+   * @param mainOutlineTasks 主大纲中的 Collaboration Process 任务列表
+   * @description 遍历所有分支，根据节点 ID 匹配主大纲中的任务，更新 tasks 数组
+   */
+  function syncBranchTasksFromMainOutline(mainOutlineTasks: any[]): void {
+    if (!mainOutlineTasks || !Array.isArray(mainOutlineTasks)) return
+
+    for (const branch of flowBranches.value) {
+      if (!branch.nodes || !Array.isArray(branch.nodes)) continue
+
+      // 构建节点 ID 到任务详情的映射
+      const nodeIdToTaskMap = new Map<string, any>()
+      for (const node of branch.nodes) {
+        if (node.data?.task) {
+          nodeIdToTaskMap.set(node.id, node.data.task)
+        }
+      }
+
+      // 根据主大纲更新 tasks 数组
+      const updatedTasks: any[] = []
+      for (const node of branch.nodes) {
+        const task = nodeIdToTaskMap.get(node.id)
+        if (task) {
+          // 从主大纲中找到对应 ID 的任务，使用主大纲中的最新数据
+          const mainTask = mainOutlineTasks.find(
+            (t: any) => t.Id === task.Id || t.StepName === task.StepName
+          )
+          if (mainTask) {
+            updatedTasks.push(mainTask)
+          } else {
+            updatedTasks.push(task)
+          }
+        }
+      }
+      branch.tasks = updatedTasks
+    }
+  }
+
   /**
    * 根据父节点 ID 获取流程图分支
    * @param parentNodeId 父节点 ID
@@ -745,6 +784,7 @@ export const useSelectionStore = defineStore('selection', () => {
     removeFlowBranch,
     clearFlowBranches,
     clearFlowBranchesByParent,
+    syncBranchTasksFromMainOutline,
 
     // ==================== 任务过程分支管理方法 ====================
     addTaskProcessBranch,