diff --git a/frontend/src/views/TaskHall.vue b/frontend/src/views/TaskHall.vue
index fe61b9f..8757fc7 100644
--- a/frontend/src/views/TaskHall.vue
+++ b/frontend/src/views/TaskHall.vue
@@ -1879,8 +1879,23 @@
         <div class="modal-section" style="margin-top: 24px;">
           <div class="section-header" style="margin-bottom: 12px;">
             <span class="section-title" style="font-weight: 600; color: #fff;">选择接单方式</span>
+            <span v-if="isTaskPreAssigned" style="margin-left: 8px; color: #faad14; font-size: 12px;">
+              （任务已预先指定设计师，不可修改）
+            </span>
           </div>
-          <a-radio-group v-model:value="approveAssignType" class="assign-type-group" style="width: 100%; display: flex; gap: 12px;">
+          <!-- 已预先指定设计师，显示只读信息 -->
+          <div v-if="isTaskPreAssigned" class="pre-assigned-info" style="padding: 16px; border: 1px solid #52c41a; border-radius: 8px; background: rgba(82, 196, 26, 0.1);">
+            <div style="display: flex; align-items: center; gap: 8px;">
+              <Icon name="check-circle" size="lg" color="#52c41a" />
+              <span style="color: #fff; font-weight: 500;">已预先指定设计师接单</span>
+            </div>
+            <div style="margin-top: 12px; color: #888;">
+              <span>指定设计师：</span>
+              <span style="color: #31f08b; font-weight: 600;">{{ preAssignedDesignerName }}</span>
+            </div>
+          </div>
+          <!-- 未预先指定，显示选择界面 -->
+          <a-radio-group v-else v-model:value="approveAssignType" class="assign-type-group" style="width: 100%; display: flex; gap: 12px;">
             <a-radio value="auto" class="assign-option" style="flex: 1; display: flex; padding: 16px; border: 1px solid #303030; border-radius: 8px; background: #141414; align-items: center; margin-right: 0;">
               <div class="option-content" style="display: inline-flex; flex-direction: column; margin-left: 8px;">
                 <span class="option-title" style="font-weight: 500; color: #fff; font-size: 14px;">发布到任务大厅</span>
@@ -1897,7 +1912,7 @@
         </div>
   
         <!-- 选择设计师 -->
-        <div v-if="approveAssignType === 'manual'" class="modal-section" style="margin-top: 24px;">
+        <div v-if="approveAssignType === 'manual' && !isTaskPreAssigned" class="modal-section" style="margin-top: 24px;">
           <div class="section-header" style="margin-bottom: 12px;">
             <span class="section-title" style="font-weight: 600; color: #fff;">选择设计师</span>
           </div>
@@ -3038,6 +3053,14 @@ const approveTaskTypes = ref<Array<{typeId: number, quantity: number}>>([])
 const approveDesignerId = ref<number | undefined>(undefined)
 const designersList = ref<DesignerWithWorkload[]>([])
 const newTaskTypePath = ref<(string | number)[] | undefined>(undefined)
+const preAssignedDesignerName = ref<string>('') // 预先指定的设计师姓名
+
+// 判断任务是否已预先指定设计师
+const isTaskPreAssigned = computed(() => {
+  if (!approveTaskData.value) return false
+  const task = approveTaskData.value as any
+  return task.releaseType === 'assigned' && task.receiverId != null
+})
 
 // 级联选择器搜索过滤
 const cascaderFilter = (inputValue: string, path: any[]) => {
@@ -3113,10 +3136,25 @@ const showAssignDesignerModal = async (task: Task) => {
     
     designersList.value = designers
     approveTaskData.value = task
-    approveAssignType.value = 'auto'
-    approveDesignerId.value = undefined
     newTaskTypePath.value = undefined
     
+    // 检查任务是否已预先指定设计师
+    const taskAny = task as any
+    if (taskAny.releaseType === 'assigned' && taskAny.receiverId) {
+      // 已预先指定设计师，设置相关状态
+      approveAssignType.value = 'manual'
+      approveDesignerId.value = taskAny.receiverId
+      // 从设计师列表中查找预先指定的设计师姓名
+      const preAssigned = designers.find(d => d.id === taskAny.receiverId)
+      preAssignedDesignerName.value = preAssigned?.realName || taskAny.receiverName || '未知'
+      console.log('任务已预先指定设计师:', preAssignedDesignerName.value)
+    } else {
+      // 未预先指定，重置状态
+      approveAssignType.value = 'auto'
+      approveDesignerId.value = undefined
+      preAssignedDesignerName.value = ''
+    }
+    
     // 如果有 typeDetails，从中获取任务类型和数量
     if (typeDetailsArray.length > 0) {
       approveTaskTypes.value = typeDetailsArray.map(detail => ({