diff --git a/apps/admin/src/pages/Deposits/deposit-student-option.integration.test.ts b/apps/admin/src/pages/Deposits/deposit-student-option.integration.test.ts
new file mode 100644
index 0000000..b876ebe
--- /dev/null
+++ b/apps/admin/src/pages/Deposits/deposit-student-option.integration.test.ts
@@ -0,0 +1,20 @@
+import { describe, expect, it } from 'vitest';
+import { buildDepositStudentOption } from './deposit-student-option';
+
+describe('deposit student option', () => {
+  it('uses the student number as the non-sensitive identifier', () => {
+    expect(
+      buildDepositStudentOption({ id: 23, name: '张三', studentNo: 'S2026001' }),
+    ).toEqual({
+      value: 23,
+      label: '张三 (S2026001)',
+    });
+  });
+
+  it('falls back to the internal id when the student number is missing', () => {
+    expect(buildDepositStudentOption({ id: 23, name: '张三', studentNo: null })).toEqual({
+      value: 23,
+      label: '张三 (#23)',
+    });
+  });
+});
diff --git a/apps/admin/src/pages/Deposits/deposit-student-option.ts b/apps/admin/src/pages/Deposits/deposit-student-option.ts
new file mode 100644
index 0000000..732d6b2
--- /dev/null
+++ b/apps/admin/src/pages/Deposits/deposit-student-option.ts
@@ -0,0 +1,10 @@
+export interface DepositStudentLookup {
+  id: number;
+  name: string;
+  studentNo?: string | null;
+}
+
+export const buildDepositStudentOption = (student: DepositStudentLookup) => ({
+  value: student.id,
+  label: `${student.name} (${student.studentNo || `#${student.id}`})`,
+});
diff --git a/apps/admin/src/pages/Deposits/index.tsx b/apps/admin/src/pages/Deposits/index.tsx
index 16c29c0..3ddc854 100644
--- a/apps/admin/src/pages/Deposits/index.tsx
+++ b/apps/admin/src/pages/Deposits/index.tsx
@@ -19,6 +19,7 @@ import dayjs from 'dayjs';
 import api from '../../api';
 import PermissionButton from '../../components/PermissionButton';
 import { message } from '../../ui/app-message';
+import { buildDepositStudentOption } from './deposit-student-option';
 
 const statusMap: Record<string, { text: string; color: string }> = {
   paid: { text: '已缴', color: 'green' },
@@ -90,10 +91,8 @@ const DepositsPage: React.FC = () => {
   const studentOptions = useMemo(
     () =>
       students
-        .map((s: any) => ({
-          value: s.id,
-          label: s.studentNo ? `${s.name} (${s.studentNo})` : s.name,
-        })),
+        .filter((s: any) => s.status === 'active')
+        .map(buildDepositStudentOption),
     [students],
   );