diff --git a/frontend/src/api.ts b/frontend/src/api.ts
index 7afc481..2712a09 100644
--- a/frontend/src/api.ts
+++ b/frontend/src/api.ts
@@ -21,6 +21,7 @@ import {
   PublicPass,
   Team,
   VisitRequestCreate,
+  VisitRequestResetResult,
   VisitRequestView,
   AdminUser,
   Watcher1Settings,
@@ -194,6 +195,8 @@ export const runSmsDiagnostics = () =>
   request<SmsDiagnosticsResult>('/admin/sms/diagnostics', { method: 'POST' });
 export const runEmailDiagnostics = () =>
   request<EmailDiagnosticsResult>('/admin/email/diagnostics', { method: 'POST' });
+export const resetVisitRequestTestData = (confirm: string) =>
+  request<VisitRequestResetResult>('/admin/visit-requests/reset-test-data', jsonInit('POST', { confirm }));
 export const listAdminUsers = () => request<AdminUser[]>('/admin/users');
 export const updateAdminUserRoles = (id: number, roles: Role[]) =>
   request<AdminUser>(`/admin/users/${id}/roles`, jsonInit('PUT', { roles }));
diff --git a/frontend/src/pages/AdminManagementPage.tsx b/frontend/src/pages/AdminManagementPage.tsx
index f3ed875..0586ea2 100644
--- a/frontend/src/pages/AdminManagementPage.tsx
+++ b/frontend/src/pages/AdminManagementPage.tsx
@@ -14,14 +14,15 @@ import {
   updateAdminUserRoles,
   runEmailDiagnostics,
   runSmsDiagnostics,
+  resetVisitRequestTestData,
   uploadAdminTeams,
   uploadAdminUserRoles,
   updateWatcher1Settings,
   getWatcher1Settings,
 } from '../api';
-import { AdminExcelImportResult, AdminUser, EmailDiagnosticsResult, PurposeCode, Role, SmsDiagnosticsResult, Team, Watcher1Settings } from '../types';
+import { AdminExcelImportResult, AdminUser, EmailDiagnosticsResult, PurposeCode, Role, SmsDiagnosticsResult, Team, VisitRequestResetResult, Watcher1Settings } from '../types';
 
-type Tab = 'watcher' | 'purpose' | 'teams' | 'roles' | 'sms' | 'email';
+type Tab = 'watcher' | 'purpose' | 'teams' | 'roles' | 'sms' | 'email' | 'data';
 
 const EMPTY_PURPOSE = {
   code: '',
@@ -141,6 +142,8 @@ export const AdminManagementPage: React.FC = () => {
   const [userRoleUploadResult, setUserRoleUploadResult] = useState<AdminExcelImportResult | null>(null);
   const [smsDiagnostics, setSmsDiagnostics] = useState<SmsDiagnosticsResult | null>(null);
   const [emailDiagnostics, setEmailDiagnostics] = useState<EmailDiagnosticsResult | null>(null);
+  const [resetConfirm, setResetConfirm] = useState('');
+  const [resetResult, setResetResult] = useState<VisitRequestResetResult | null>(null);
   const [notice, setNotice] = useState<string | null>(null);
   const [error, setError] = useState<string | null>(null);
   const [busy, setBusy] = useState(false);
@@ -203,6 +206,27 @@ export const AdminManagementPage: React.FC = () => {
     }
   };
 
+  const resetVisitData = async () => {
+    if (resetConfirm.trim() !== '초기화') {
+      setError('확인 입력란에 "초기화"를 입력하세요.');
+      return;
+    }
+    setBusy(true);
+    setError(null);
+    setNotice(null);
+    setResetResult(null);
+    try {
+      const result = await resetVisitRequestTestData(resetConfirm);
+      setResetResult(result);
+      setResetConfirm('');
+      setNotice(`출입신청 테스트 데이터 초기화 완료: 신청 ${result.visitRequests}건 삭제`);
+    } catch (err) {
+      setError(err instanceof Error ? err.message : '테스트 데이터 초기화 실패');
+    } finally {
+      setBusy(false);
+    }
+  };
+
   const editPurpose = (p: PurposeCode) => {
     setEditingPurposeId(p.id);
     setPurposeForm({
@@ -440,6 +464,7 @@ export const AdminManagementPage: React.FC = () => {
         <button className={tab === 'roles' ? 'tab-active' : ''} onClick={() => setTab('roles')}>권한관리</button>
         <button className={tab === 'sms' ? 'tab-active' : ''} onClick={() => setTab('sms')}>SMS 점검</button>
         <button className={tab === 'email' ? 'tab-active' : ''} onClick={() => setTab('email')}>Email 점검</button>
+        <button className={tab === 'data' ? 'tab-active' : ''} onClick={() => setTab('data')}>데이터 정리</button>
       </div>
 
       {tab === 'watcher' && (
@@ -616,6 +641,43 @@ export const AdminManagementPage: React.FC = () => {
         </>
       )}
 
+      {tab === 'data' && (
+        <div className="card">
+          <div className="admin-upload-head">
+            <h3>출입신청 테스트 데이터 초기화</h3>
+          </div>
+          <p className="muted">
+            출입신청, 승인 기록, 입/퇴장 기록, 출입증 발송 기록을 삭제합니다. 사용자, 팀, 권한, 출입목적 코드, 시스템 설정, 블랙리스트는 유지됩니다.
+          </p>
+          <div className="admin-upload-controls">
+            <input
+              value={resetConfirm}
+              onChange={(e) => setResetConfirm(e.target.value)}
+              placeholder="초기화"
+            />
+            <button
+              className="btn-danger"
+              type="button"
+              disabled={busy || resetConfirm.trim() !== '초기화'}
+              onClick={() => void resetVisitData()}
+            >
+              테스트 데이터 초기화
+            </button>
+          </div>
+          {resetResult && (
+            <table className="table diagnostic-table">
+              <tbody>
+                <tr><th>출입신청</th><td>{resetResult.visitRequests}건</td></tr>
+                <tr><th>방문자</th><td>{resetResult.visitors}건</td></tr>
+                <tr><th>승인 기록</th><td>{resetResult.approvals}건</td></tr>
+                <tr><th>입/퇴장 기록</th><td>{resetResult.accessEvents}건</td></tr>
+                <tr><th>출입증 발송 기록</th><td>{resetResult.passDeliveries}건</td></tr>
+              </tbody>
+            </table>
+          )}
+        </div>
+      )}
+
       {tab === 'sms' && (
         <div className="card">
           <div className="admin-upload-head">
diff --git a/frontend/src/types.ts b/frontend/src/types.ts
index 27eaec9..2a66972 100644
--- a/frontend/src/types.ts
+++ b/frontend/src/types.ts
@@ -197,6 +197,14 @@ export interface AdminExcelImportResult {
   rows: AdminExcelImportRow[];
 }
 
+export interface VisitRequestResetResult {
+  visitRequests: number;
+  visitors: number;
+  approvals: number;
+  accessEvents: number;
+  passDeliveries: number;
+}
+
 export interface InsideVisitor {
   visitRequestId: number;
   visitorName: string;
diff --git a/server/routes/admin.ts b/server/routes/admin.ts
index c264d80..33416b6 100644
--- a/server/routes/admin.ts
+++ b/server/routes/admin.ts
@@ -62,6 +62,14 @@ interface ImportResult {
   rows: ImportRow[];
 }
 
+interface VisitRequestResetResult {
+  visitRequests: number;
+  visitors: number;
+  approvals: number;
+  accessEvents: number;
+  passDeliveries: number;
+}
+
 interface AdminRouterDeps {
   query: QueryFn;
 }
@@ -481,6 +489,50 @@ export function createAdminRouter(deps: AdminRouterDeps = { query }): Router {
     ok(res, await diagnoseEmailConnectivity());
   }));
 
+  router.post('/visit-requests/reset-test-data', asyncRoute(async (req, res) => {
+    const actor = await requireAdmin(dbQuery, req);
+    if (String(req.body?.confirm ?? '').trim() !== '초기화') {
+      throw new ApiError(400, '확인 입력란에 "초기화"를 입력하세요.');
+    }
+
+    const targetRequests = await dbQuery<{ id: string; visitor_id: string }>(
+      'SELECT id, visitor_id FROM visit_requests',
+    );
+    const visitorIds = [...new Set(targetRequests.rows.map((row) => Number(row.visitor_id)))];
+
+    const passDeliveries = await dbQuery<{ id: string }>('DELETE FROM pass_deliveries RETURNING id');
+    const approvals = await dbQuery<{ id: string }>('DELETE FROM approvals RETURNING id');
+    const accessEvents = await dbQuery<{ id: string }>('DELETE FROM access_events RETURNING id');
+    const visitRequests = await dbQuery<{ id: string }>('DELETE FROM visit_requests RETURNING id');
+    const visitors = visitorIds.length > 0
+      ? await dbQuery<{ id: string }>(
+        `
+          DELETE FROM visitors v
+          WHERE v.id = ANY($1::bigint[])
+            AND NOT EXISTS (SELECT 1 FROM visit_requests vr WHERE vr.visitor_id = v.id)
+          RETURNING id
+        `,
+        [visitorIds],
+      )
+      : { rows: [] };
+
+    const result: VisitRequestResetResult = {
+      visitRequests: visitRequests.rows.length,
+      visitors: visitors.rows.length,
+      approvals: approvals.rows.length,
+      accessEvents: accessEvents.rows.length,
+      passDeliveries: passDeliveries.rows.length,
+    };
+    await audit(
+      dbQuery,
+      actor,
+      'VISIT_REQUEST',
+      null,
+      `출입신청 테스트 데이터 초기화: 신청 ${result.visitRequests}건, 방문자 ${result.visitors}건, 승인 ${result.approvals}건, 입퇴장 ${result.accessEvents}건, 발송 ${result.passDeliveries}건`,
+    );
+    ok(res, result);
+  }));
+
   router.get('/teams', asyncRoute(async (req, res) => {
     await requireAdmin(dbQuery, req);
     ok(res, await listTeams(dbQuery));