diff --git a/src/pages/EmployeeSerials.tsx b/src/pages/EmployeeSerials.tsx
index 8590a15..7e0dd35 100644
--- a/src/pages/EmployeeSerials.tsx
+++ b/src/pages/EmployeeSerials.tsx
@@ -61,7 +61,7 @@ function EmployeeSerialsPage() {
     }
   };
 
-  const handleGenerate = async (values: { companyName: string; department: string; employeeName: string; quantity: number }) => {
+  const handleGenerate = async (values: { companyName: string; position: string; employeeName: string; quantity: number }) => {
     setGenerateLoading(true);
     try {
       const result = await employeeSerialApi.generate(values);
@@ -110,18 +110,23 @@ function EmployeeSerialsPage() {
     setSelectedSerial(serial);
     editForm.setFieldsValue({
       companyName: serial.companyName,
-      department: serial.department,
+      position: serial.position, // 映射 position 到 position
       employeeName: serial.employeeName,
       isActive: serial.isActive,
     });
     setEditModalVisible(true);
   };
 
-  const handleUpdate = async (values: { companyName?: string; department?: string; employeeName?: string; isActive?: boolean }) => {
+  const handleUpdate = async (values: { companyName?: string; position?: string; employeeName?: string; isActive?: boolean }) => {
     if (!selectedSerial) return;
     setEditLoading(true);
     try {
-      await employeeSerialApi.update(selectedSerial.serialNumber, values);
+      await employeeSerialApi.update(selectedSerial.serialNumber, {
+        companyName: values.companyName,
+        position: values.position, // 映射 position 到 position
+        employeeName: values.employeeName,
+        isActive: values.isActive,
+      });
       message.success('更新成功');
       setEditModalVisible(false);
       loadSerials();
@@ -205,9 +210,9 @@ function EmployeeSerialsPage() {
       key: 'companyName',
     },
     {
-      title: '部门',
-      dataIndex: 'department',
-      key: 'department',
+      title: '职位',
+      dataIndex: 'position',
+      key: 'position',
     },
     {
       title: '员工姓名',
@@ -288,7 +293,7 @@ function EmployeeSerialsPage() {
         extra={
           <Space>
             <Input.Search
-              placeholder="搜索序列号/企业/部门/员工"
+              placeholder="搜索序列号/企业/职位/员工"
               allowClear
               style={{ width: 250 }}
               onSearch={handleSearch}
@@ -350,11 +355,11 @@ function EmployeeSerialsPage() {
             <Input placeholder="请输入企业名称" />
           </Form.Item>
           <Form.Item
-            name="department"
-            label="部门"
-            rules={[{ required: true, message: '请输入部门' }]}
+            name="position"
+            label="职位"
+            rules={[{ required: true, message: '请输入职位' }]}
           >
-            <Input placeholder="请输入部门" />
+            <Input placeholder="请输入职位" />
           </Form.Item>
           <Form.Item
             name="employeeName"
@@ -436,10 +441,10 @@ function EmployeeSerialsPage() {
             <Input placeholder="请输入企业名称" />
           </Form.Item>
           <Form.Item
-            name="department"
-            label="部门"
+            name="position"
+            label="职位"
           >
-            <Input placeholder="请输入部门" />
+            <Input placeholder="请输入职位" />
           </Form.Item>
           <Form.Item
             name="employeeName"
@@ -479,7 +484,7 @@ function EmployeeSerialsPage() {
             <Space direction="vertical" style={{ width: '100%' }} size="middle">
               <div>
                 <p><strong>企业名称:</strong> {generatedData.serials?.[0]?.companyName}</p>
-                <p><strong>部门:</strong> {generatedData.serials?.[0]?.department}</p>
+                <p><strong>职位:</strong> {generatedData.serials?.[0]?.position}</p>
                 <p><strong>员工姓名:</strong> {generatedData.serials?.[0]?.employeeName}</p>
                 <p><strong>生成数量:</strong> {generatedData.serials?.length || 0}</p>
               </div>
@@ -521,7 +526,7 @@ function EmployeeSerialsPage() {
                 {selectedSerial?.serialNumber}
               </p>
               <p style={{ marginTop: '8px', fontSize: '12px', color: '#999' }}>
-                {selectedSerial?.companyName} - {selectedSerial?.department} - {selectedSerial?.employeeName}
+                {selectedSerial?.companyName} - {selectedSerial?.position} - {selectedSerial?.employeeName}
               </p>
             </>
           )}
diff --git a/src/pages/PublicQuery.tsx b/src/pages/PublicQuery.tsx
index 190a44a..2936398 100644
--- a/src/pages/PublicQuery.tsx
+++ b/src/pages/PublicQuery.tsx
@@ -149,7 +149,7 @@ function PublicQueryPage() {
                 {serialType === 'employee' && (result as EmployeeSerialResult).department && (
                   <>
                     <div className="detail-item">
-                      <span className="label">部门</span>
+                      <span className="label">职位</span>
                       <span className="value">{(result as EmployeeSerialResult).department}</span>
                     </div>
                     <div className="detail-item">
diff --git a/src/services/api.ts b/src/services/api.ts
index 349a08e..3b917b3 100644
--- a/src/services/api.ts
+++ b/src/services/api.ts
@@ -221,7 +221,7 @@ export const dashboardApi = {
 export const employeeSerialApi = {
   generate: async (data: {
     companyName: string;
-    department: string;
+    position: string;
     employeeName: string;
     quantity: number;
     serialPrefix?: string;
@@ -290,7 +290,7 @@ export const employeeSerialApi = {
 
   update: async (serialNumber: string, data: {
     companyName?: string;
-    department?: string;
+    position?: string;
     employeeName?: string;
     isActive?: boolean;
   }) => {
diff --git a/src/types/index.ts b/src/types/index.ts
index db56c9a..b8872eb 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -94,7 +94,7 @@ export interface CompanyFilter {
 export interface EmployeeSerial {
   serialNumber: string;
   companyName: string;
-  department: string;
+  position: string;
   employeeName: string;
   isActive: boolean;
   createdAt: string;