diff --git a/backend/src/main/java/com/designhub/service/TaskService.java b/backend/src/main/java/com/designhub/service/TaskService.java
index 4161641..845bad4 100644
--- a/backend/src/main/java/com/designhub/service/TaskService.java
+++ b/backend/src/main/java/com/designhub/service/TaskService.java
@@ -1775,16 +1775,18 @@ public class TaskService {
     @Transactional(rollbackFor = Exception.class)
     public void updateTask(Long id, Task task, Long userId) {
         Task existTask = getTaskById(id);
+        String status = existTask.getStatus();
+        boolean receivingDeptLeader = isReceivingDeptLeader(userId);
+        boolean leaderCanEditPending = receivingDeptLeader && "pending".equals(status);
         
-        // 验证权限：只有任务发布人才能更新任务
+        // 验证权限：任务发布人、管理员，或接单部门负责人（仅待接单任务）可以更新任务
         boolean isAdmin = isAdminUser(userId);
-        if (!isAdmin && !userId.equals(existTask.getPublisherId())) {
-            throw new BusinessException(ResultCode.FORBIDDEN, "只有任务发布人可以更新任务");
+        if (!isAdmin && !userId.equals(existTask.getPublisherId()) && !leaderCanEditPending) {
+            throw new BusinessException(ResultCode.FORBIDDEN, "只有任务发布人或接单部门负责人（待接单任务）可以更新任务");
         }
         
         // 允许更新的任务状态：草稿、待审核（需求/接单部门审核）、被驳回
         // 不允许更新的状态：进行中(in_progress)、已完成(completed)、已取消(cancelled)
-        String status = existTask.getStatus();
         String approvalStatus = existTask.getApprovalStatus();
         
         boolean canUpdate = "draft".equals(status) ||
@@ -1818,8 +1820,11 @@ public class TaskService {
     @Transactional(rollbackFor = Exception.class)
     public void updatePipelineTask(Long id, com.designhub.dto.PipelineTaskDTO dto, Long userId) {
         Task existTask = getTaskById(id);
+        String status = existTask.getStatus();
+        boolean receivingDeptLeader = isReceivingDeptLeader(userId);
+        boolean leaderCanEditPending = receivingDeptLeader && "pending".equals(status);
         
-        // 验证权限：任务发布人、一级需求任务的明细完善人可以更新任务
+        // 验证权限：任务发布人、一级需求任务的明细完善人、接单部门负责人（待接单任务）可以更新任务
         boolean isAdmin = isAdminUser(userId);
         // 对于一级需求任务，明细完善人在任何可编辑状态下都可以更新（包括草稿状态）
         boolean isPrimaryTaskDetailCompleter = existTask.getIsPrimaryTask() != null 
@@ -1842,8 +1847,9 @@ public class TaskService {
             }
         }
         
-        if (!isAdmin && !userId.equals(existTask.getPublisherId()) && !isPrimaryTaskDetailCompleter && !isDemandDeptMemberForPrimaryTask) {
-            throw new BusinessException(ResultCode.FORBIDDEN, "只有任务发布人或指定的明细完善人可以更新任务");
+        if (!isAdmin && !userId.equals(existTask.getPublisherId()) && !isPrimaryTaskDetailCompleter
+                && !isDemandDeptMemberForPrimaryTask && !leaderCanEditPending) {
+            throw new BusinessException(ResultCode.FORBIDDEN, "只有任务发布人、指定的明细完善人或接单部门负责人（待接单任务）可以更新任务");
         }
         
         // 验证任务是否是流水线任务
@@ -1859,7 +1865,6 @@ public class TaskService {
         
         // 允许更新的任务状态：草稿、待审核（需求/接单部门审核）、被驳回、待完善明细
         // 不允许更新的状态：进行中(in_progress)、已完成(completed)、已取消(cancelled)
-        String status = existTask.getStatus();
         String approvalStatus = existTask.getApprovalStatus();
         
         boolean canUpdate = "draft".equals(status) ||
@@ -2790,6 +2795,26 @@ public class TaskService {
         }
     }
 
+    /**
+     * 检查用户是否是任一接单部门负责人
+     */
+    private boolean isReceivingDeptLeader(Long userId) {
+        if (userId == null) {
+            return false;
+        }
+        try {
+            Long count = departmentMapper.selectCount(new LambdaQueryWrapper<Department>()
+                .eq(Department::getLeaderId, userId)
+                .eq(Department::getDeptType, "receiving")
+                .eq(Department::getStatus, 1)
+                .eq(Department::getDeleted, 0));
+            return count != null && count > 0;
+        } catch (Exception e) {
+            log.warn("检查接单部门负责人失败: userId={}, error={}", userId, e.getMessage());
+            return false;
+        }
+    }
+
     private void validateAllowedDemandTypes(Department department, Long demandTypeId) {
         if (department == null || !StringUtils.hasText(department.getAllowedDemandTypes()) || demandTypeId == null) {
             return;
diff --git a/frontend/src/views/TaskHall.vue b/frontend/src/views/TaskHall.vue
index d2c0f03..80422ae 100644
--- a/frontend/src/views/TaskHall.vue
+++ b/frontend/src/views/TaskHall.vue
@@ -344,6 +344,14 @@
               >
                 查看详情
               </button>
+              <button
+                v-if="canEditAvailableTaskDetail(task)"
+                class="btn btn-secondary"
+                style="flex: 1"
+                @click.stop="handleEditAvailableTaskDetail(task)"
+              >
+                编辑明细
+              </button>
               <button
                 :class="[
                   'btn',
@@ -2342,22 +2350,30 @@
           <!-- 根据任务状态显示不同的操作按钮 -->
           <div class="detail-actions">
             <!-- 可接任务：显示抢单 -->
-            <a-button 
-              v-if="selectedTask.status === 'pending'" 
-              :type="canGrabTask(selectedTask).canGrab ? 'primary' : 'default'"
-              :style="{
-                backgroundColor: canGrabTask(selectedTask).canGrab ? '#31f08b' : '#999',
-                borderColor: canGrabTask(selectedTask).canGrab ? '#31f08b' : '#999',
-                color: '#fff',
-                cursor: canGrabTask(selectedTask).canGrab ? 'pointer' : 'not-allowed',
-                opacity: canGrabTask(selectedTask).canGrab ? 1 : 0.6
-              }"
-              size="large" 
-              block
-              :disabled="!canGrabTask(selectedTask).canGrab"
-              @click="handleGrabFromDetail">
-              {{ canGrabTask(selectedTask).canGrab ? '确认抢单' : `不可接单（${canGrabTask(selectedTask).reason}）` }}
-            </a-button>
+            <div v-if="selectedTask.status === 'pending'" class="action-buttons">
+              <a-button
+                v-if="canEditAvailableTaskDetail(selectedTask)"
+                size="large"
+                @click="handleEditAvailableTaskDetail(selectedTask)"
+              >
+                编辑任务明细
+              </a-button>
+              <a-button 
+                :type="canGrabTask(selectedTask).canGrab ? 'primary' : 'default'"
+                :style="{
+                  backgroundColor: canGrabTask(selectedTask).canGrab ? '#31f08b' : '#999',
+                  borderColor: canGrabTask(selectedTask).canGrab ? '#31f08b' : '#999',
+                  color: '#fff',
+                  cursor: canGrabTask(selectedTask).canGrab ? 'pointer' : 'not-allowed',
+                  opacity: canGrabTask(selectedTask).canGrab ? 1 : 0.6
+                }"
+                size="large"
+                :block="!canEditAvailableTaskDetail(selectedTask)"
+                :disabled="!canGrabTask(selectedTask).canGrab"
+                @click="handleGrabFromDetail">
+                {{ canGrabTask(selectedTask).canGrab ? '确认抢单' : `不可接单（${canGrabTask(selectedTask).reason}）` }}
+              </a-button>
+            </div>
             
             <!-- 进行中任务：显示更新进度和完结 -->
             <div v-else-if="selectedTask.status === 'in_progress'" class="action-buttons">
@@ -3474,6 +3490,14 @@ const canViewAvailableTaskAttachmentInfo = computed(() => {
   return false
 })
 
+// 可接任务：接单部门负责人可编辑待接单主任务明细
+const canEditAvailableTaskDetail = (task: TaskOrSubTask | null | undefined) => {
+  if (!task) return false
+  if (task.status !== 'pending') return false
+  if (Number((task as any).isSubTask) === 1 || !!task.itemId) return false
+  return canViewAvailableTaskAttachmentInfo.value
+}
+
 // 加载配置数据（从全局store加载）
 const loadConfigs = async () => {
   try {
@@ -5702,6 +5726,21 @@ const handleEditRejectedTask = (task: Task) => {
   })
 }
 
+const handleEditAvailableTaskDetail = (task: TaskOrSubTask) => {
+  if (!task?.id) {
+    message.error('任务ID不存在，无法编辑')
+    return
+  }
+  detailDrawerVisible.value = false
+  router.push({
+    path: '/tasks/create',
+    query: {
+      editId: task.id,
+      mode: 'edit'
+    }
+  })
+}
+
 const handleCompleteTask = (task: TaskOrSubTask) => {
   const isSubTask = task.isSubTask
   const taskType = isSubTask ? '子任务' : '任务'