diff --git a/frontend/src/views/CreateTask.vue b/frontend/src/views/CreateTask.vue
index 0e74993..511044b 100644
--- a/frontend/src/views/CreateTask.vue
+++ b/frontend/src/views/CreateTask.vue
@@ -154,7 +154,7 @@
                       <a-select
                         v-model:value="item.selectedDeptId"
                         placeholder="选择接单部门"
-                        style="width: 160px"
+                        style="width: 220px"
                         size="large"
                         @change="calculateScore"
                       >
@@ -163,7 +163,7 @@
                           :key="dept.id"
                           :value="dept.id"
                         >
-                          {{ dept.deptName }}
+                          {{ dept.displayName }}
                         </a-select-option>
                       </a-select>
                     </div>
@@ -1007,6 +1007,28 @@ const loadDepartmentList = async () => {
   }
 }
 
+const getDepartmentById = (deptId?: number | null) => {
+  if (!deptId) return undefined
+  return departmentList.value.find(d => d.id === deptId)
+}
+
+const getDepartmentDisplayName = (
+  dept?: departmentApi.DepartmentOverview | null,
+  duplicateNames?: Set<string>
+) => {
+  if (!dept) return '未知部门'
+
+  const parentDept = getDepartmentById(dept.parentId)
+  const shouldShowParent = duplicateNames?.has(dept.deptName) ?? false
+  const isThirdLevelOrDeeper = !!parentDept && parentDept.parentId !== undefined && parentDept.parentId !== null && parentDept.parentId !== 0
+
+  if (!parentDept || (!shouldShowParent && !isThirdLevelOrDeeper)) {
+    return dept.deptName
+  }
+
+  return `${parentDept.deptName} / ${dept.deptName}`
+}
+
 // 构建级联选择器选项（三级结构）
 const taskTypeCascaderOptions = computed<CascaderOption[]>(() => {
   const buildOptions = (items: any[]): CascaderOption[] => {
@@ -1400,8 +1422,8 @@ const pipelineGroups = computed(() => {
     // 如果用户选择了具体部门，使用用户选择的部门
     if (taskType.selectedDeptId) {
       deptIds = String(taskType.selectedDeptId)
-      const selectedDept = departmentList.value.find(d => d.id === taskType.selectedDeptId)
-      deptName = selectedDept?.deptName || '未知部门'
+      const selectedDept = getDepartmentById(taskType.selectedDeptId)
+      deptName = getDepartmentDisplayName(selectedDept)
     } else {
       deptName = getDeptNameFromIds(deptIds)
     }
@@ -1448,7 +1470,7 @@ const pipelineGroups = computed(() => {
 })
 
 // 获取任务类型可选的部门列表
-const getTaskTypeDeptOptions = (item: TaskTypeItem): Array<{ id: number, deptName: string }> => {
+const getTaskTypeDeptOptions = (item: TaskTypeItem): Array<{ id: number, deptName: string, displayName: string }> => {
   if (!item.taskTypeId) return []
   
   const typeInfo = getTaskTypeInfo(item.taskTypeId)
@@ -1459,12 +1481,23 @@ const getTaskTypeDeptOptions = (item: TaskTypeItem): Array<{ id: number, deptNam
   
   const ids = deptIds.split(',').map(id => parseInt(id.trim())).filter(id => !isNaN(id))
   if (ids.length <= 1) return [] // 只有一个部门时不需要选择
+
+  const depts = ids
+    .map(id => getDepartmentById(id))
+    .filter((dept): dept is departmentApi.DepartmentOverview => !!dept)
+
+  const duplicateNames = new Set(
+    depts
+      .map(dept => dept.deptName)
+      .filter((name, index, names) => names.indexOf(name) !== index)
+  )
   
-  // 返回部门列表
-  return ids.map(id => {
-    const dept = departmentList.value.find(d => d.id === id)
-    return dept ? { id: dept.id!, deptName: dept.deptName } : null
-  }).filter(d => d !== null) as Array<{ id: number, deptName: string }>
+  // 同名三级部门展示为“二级部门 / 三级部门”，避免用户无法区分
+  return depts.map(dept => ({
+    id: dept.id!,
+    deptName: dept.deptName,
+    displayName: getDepartmentDisplayName(dept, duplicateNames)
+  }))
 }
 
 // 根据部门ID获取部门名称
@@ -1475,12 +1508,12 @@ const getDeptNameFromIds = (deptIds: string): string => {
   if (ids.length === 0) return '所有部门'
   
   // 从部门列表中查找部门信息
-  const depts = ids.map(id => departmentList.value.find(d => d.id === id)).filter(d => d)
+  const depts = ids.map(id => getDepartmentById(id)).filter((dept): dept is departmentApi.DepartmentOverview => !!dept)
   if (depts.length === 0) return '所有部门'
   
   // 如果只有一个部门，显示部门名称
   if (depts.length === 1) {
-    return depts[0]!.deptName
+    return getDepartmentDisplayName(depts[0])
   }
   
   // 检查是否所有部门属于同一个父部门
@@ -1490,7 +1523,7 @@ const getDeptNameFromIds = (deptIds: string): string => {
     const uniqueParentIds = [...new Set(parentIds)]
     if (uniqueParentIds.length === 1) {
       // 所有部门属于同一个父部门，显示父部门名称
-      const parentDept = departmentList.value.find(d => d.id === uniqueParentIds[0])
+      const parentDept = getDepartmentById(uniqueParentIds[0])
       if (parentDept) {
         return parentDept.deptName
       }
@@ -1498,7 +1531,12 @@ const getDeptNameFromIds = (deptIds: string): string => {
   }
   
   // 部门属于不同父部门，显示具体名称
-  const deptNames = depts.map(d => d!.deptName)
+  const duplicateNames = new Set(
+    depts
+      .map(dept => dept.deptName)
+      .filter((name, index, names) => names.indexOf(name) !== index)
+  )
+  const deptNames = depts.map(dept => getDepartmentDisplayName(dept, duplicateNames))
   if (deptNames.length <= 3) {
     return deptNames.join('、')
   }
@@ -3166,8 +3204,8 @@ onUnmounted(() => {
   
   .task-type-dept {
     flex-shrink: 0;
-    min-width: 160px; // 固定最小宽度
-    width: 160px; // 固定宽度
+    min-width: 220px; // 给“二级部门 / 三级部门”留出足够空间
+    width: 220px;
   }
 
   .task-type-actions {