diff --git a/src/server/routes/api/accounts.rebind-session.test.ts b/src/server/routes/api/accounts.rebind-session.test.ts
index 8312555..4866357 100644
--- a/src/server/routes/api/accounts.rebind-session.test.ts
+++ b/src/server/routes/api/accounts.rebind-session.test.ts
@@ -159,4 +159,135 @@ describe('accounts rebind-session api', () => {
     expect(latest?.username).toBe('linuxdo_1002');
     expect(latest?.status).toBe('active');
   });
+
+  it('stores managed sub2api refresh token fields when provided during rebind', async () => {
+    verifyTokenMock.mockResolvedValueOnce({
+      tokenType: 'session',
+      userInfo: { username: 'sub2_user' },
+    });
+
+    const site = db.insert(schema.sites).values({
+      name: 'Sub2 Rebind Site',
+      url: 'https://sub2.example.com',
+      platform: 'sub2api',
+    }).returning().get();
+
+    const account = db.insert(schema.accounts).values({
+      siteId: site.id,
+      username: 'sub2_user',
+      accessToken: 'old-access-token',
+      status: 'expired',
+      extraConfig: JSON.stringify({
+        sub2apiAuth: {
+          refreshToken: 'old-refresh-token',
+          tokenExpiresAt: 1750000000000,
+        },
+      }),
+    }).returning().get();
+
+    const response = await app.inject({
+      method: 'POST',
+      url: `/api/accounts/${account.id}/rebind-session`,
+      payload: {
+        accessToken: 'new-session-token',
+        refreshToken: 'new-refresh-token',
+        tokenExpiresAt: 1760000000000,
+      },
+    });
+
+    expect(response.statusCode).toBe(200);
+
+    const latest = db.select().from(schema.accounts).where(eq(schema.accounts.id, account.id)).get();
+    const parsedExtra = JSON.parse(String(latest?.extraConfig || '{}')) as {
+      sub2apiAuth?: { refreshToken?: string; tokenExpiresAt?: number };
+    };
+    expect(parsedExtra.sub2apiAuth?.refreshToken).toBe('new-refresh-token');
+    expect(parsedExtra.sub2apiAuth?.tokenExpiresAt).toBe(1760000000000);
+  });
+
+  it('keeps existing sub2api refresh token when rebind payload refreshToken is empty', async () => {
+    verifyTokenMock.mockResolvedValueOnce({
+      tokenType: 'session',
+      userInfo: { username: 'sub2_user' },
+    });
+
+    const site = db.insert(schema.sites).values({
+      name: 'Sub2 Rebind Site',
+      url: 'https://sub2.example.com',
+      platform: 'sub2api',
+    }).returning().get();
+
+    const account = db.insert(schema.accounts).values({
+      siteId: site.id,
+      username: 'sub2_user',
+      accessToken: 'old-access-token',
+      status: 'expired',
+      extraConfig: JSON.stringify({
+        sub2apiAuth: {
+          refreshToken: 'kept-refresh-token',
+          tokenExpiresAt: 1750000000000,
+        },
+      }),
+    }).returning().get();
+
+    const response = await app.inject({
+      method: 'POST',
+      url: `/api/accounts/${account.id}/rebind-session`,
+      payload: {
+        accessToken: 'new-session-token',
+        refreshToken: '',
+        tokenExpiresAt: 1760000000000,
+      },
+    });
+
+    expect(response.statusCode).toBe(200);
+
+    const latest = db.select().from(schema.accounts).where(eq(schema.accounts.id, account.id)).get();
+    const parsedExtra = JSON.parse(String(latest?.extraConfig || '{}')) as {
+      sub2apiAuth?: { refreshToken?: string; tokenExpiresAt?: number };
+    };
+    expect(parsedExtra.sub2apiAuth?.refreshToken).toBe('kept-refresh-token');
+    expect(parsedExtra.sub2apiAuth?.tokenExpiresAt).toBe(1760000000000);
+  });
+
+  it('ignores managed sub2api refresh token fields for non-sub2api rebind', async () => {
+    verifyTokenMock.mockResolvedValueOnce({
+      tokenType: 'session',
+      userInfo: { username: 'linuxdo_1003' },
+    });
+
+    const site = db.insert(schema.sites).values({
+      name: 'Rebind Site',
+      url: 'https://rebind.example.com',
+      platform: 'new-api',
+    }).returning().get();
+
+    const account = db.insert(schema.accounts).values({
+      siteId: site.id,
+      username: 'linuxdo_1001',
+      accessToken: 'old-access-token',
+      status: 'expired',
+      extraConfig: JSON.stringify({ platformUserId: 1001 }),
+    }).returning().get();
+
+    const response = await app.inject({
+      method: 'POST',
+      url: `/api/accounts/${account.id}/rebind-session`,
+      payload: {
+        accessToken: 'new-session-token',
+        refreshToken: 'should-be-ignored',
+        tokenExpiresAt: 1760000000000,
+      },
+    });
+
+    expect(response.statusCode).toBe(200);
+
+    const latest = db.select().from(schema.accounts).where(eq(schema.accounts.id, account.id)).get();
+    const parsedExtra = JSON.parse(String(latest?.extraConfig || '{}')) as {
+      sub2apiAuth?: { refreshToken?: string; tokenExpiresAt?: number };
+      platformUserId?: number;
+    };
+    expect(parsedExtra.platformUserId).toBe(1001);
+    expect(parsedExtra.sub2apiAuth).toBeUndefined();
+  });
 });
diff --git a/src/server/routes/api/accounts.ts b/src/server/routes/api/accounts.ts
index 9bc2927..c5f5655 100644
--- a/src/server/routes/api/accounts.ts
+++ b/src/server/routes/api/accounts.ts
@@ -594,7 +594,7 @@ export async function accountsRoutes(app: FastifyInstance) {
     };
   });
 
-  app.post<{ Params: { id: string }; Body: { accessToken: string; platformUserId?: number } }>(
+  app.post<{ Params: { id: string }; Body: { accessToken: string; platformUserId?: number; refreshToken?: string; tokenExpiresAt?: number | string } }>(
     '/api/accounts/:id/rebind-session',
     async (request, reply) => {
       const accountId = Number.parseInt(request.params.id, 10);
@@ -672,6 +672,18 @@ export async function accountsRoutes(app: FastifyInstance) {
       if (resolvedPlatformUserId) {
         extraConfigPatch.platformUserId = resolvedPlatformUserId;
       }
+      if ((site.platform || '').toLowerCase() === 'sub2api') {
+        const existingManagedAuth = getSub2ApiAuthFromExtraConfig(account.extraConfig);
+        const requestedRefreshToken = normalizeManagedRefreshToken(request.body?.refreshToken);
+        const requestedTokenExpiresAt = normalizeManagedTokenExpiresAt(request.body?.tokenExpiresAt);
+        const nextRefreshToken = requestedRefreshToken || existingManagedAuth?.refreshToken;
+        const nextTokenExpiresAt = requestedTokenExpiresAt ?? existingManagedAuth?.tokenExpiresAt;
+        if (nextRefreshToken) {
+          extraConfigPatch.sub2apiAuth = nextTokenExpiresAt
+            ? { refreshToken: nextRefreshToken, tokenExpiresAt: nextTokenExpiresAt }
+            : { refreshToken: nextRefreshToken };
+        }
+      }
       updates.extraConfig = mergeAccountExtraConfig(account.extraConfig, extraConfigPatch);
 
       db.update(schema.accounts).set(updates).where(eq(schema.accounts.id, accountId)).run();
diff --git a/src/web/api.ts b/src/web/api.ts
index 7a5350e..bcc4b20 100644
--- a/src/web/api.ts
+++ b/src/web/api.ts
@@ -110,7 +110,7 @@ export const api = {
   addAccount: (data: any) => request('/api/accounts', { method: 'POST', body: JSON.stringify(data) }),
   loginAccount: (data: { siteId: number; username: string; password: string }) => request('/api/accounts/login', { method: 'POST', body: JSON.stringify(data) }),
   verifyToken: (data: { siteId: number; accessToken: string; platformUserId?: number; credentialMode?: 'auto' | 'session' | 'apikey' }) => request('/api/accounts/verify-token', { method: 'POST', body: JSON.stringify(data) }),
-  rebindAccountSession: (id: number, data: { accessToken: string; platformUserId?: number }) =>
+  rebindAccountSession: (id: number, data: { accessToken: string; platformUserId?: number; refreshToken?: string; tokenExpiresAt?: number }) =>
     request(`/api/accounts/${id}/rebind-session`, { method: 'POST', body: JSON.stringify(data) }),
   updateAccount: (id: number, data: any) => request(`/api/accounts/${id}`, { method: 'PUT', body: JSON.stringify(data) }),
   deleteAccount: (id: number) => request(`/api/accounts/${id}`, { method: 'DELETE' }),
diff --git a/src/web/pages/Accounts.tsx b/src/web/pages/Accounts.tsx
index 06de665..4e5ff8d 100644
--- a/src/web/pages/Accounts.tsx
+++ b/src/web/pages/Accounts.tsx
@@ -35,7 +35,7 @@ export default function Accounts() {
   const [saving, setSaving] = useState(false);
   const [actionLoading, setActionLoading] = useState<Record<string, boolean>>({});
   const [rebindTarget, setRebindTarget] = useState<any | null>(null);
-  const [rebindForm, setRebindForm] = useState({ accessToken: '', platformUserId: '' });
+  const [rebindForm, setRebindForm] = useState({ accessToken: '', platformUserId: '', refreshToken: '', tokenExpiresAt: '' });
   const [rebindVerifyResult, setRebindVerifyResult] = useState<any>(null);
   const [rebindVerifying, setRebindVerifying] = useState(false);
   const [rebindSaving, setRebindSaving] = useState(false);
@@ -51,6 +51,7 @@ export default function Accounts() {
   const toast = useToast();
   if (rebindTarget) lastRebindTargetRef.current = rebindTarget;
   const activeRebindTarget = rebindTarget || lastRebindTargetRef.current;
+  const isRebindSub2Api = ((activeRebindTarget?.site?.platform || '').toLowerCase() === 'sub2api');
 
   const load = async () => {
     const [accountsResult, sitesResult] = await Promise.allSettled([
@@ -330,6 +331,8 @@ export default function Accounts() {
     setRebindForm({
       accessToken: '',
       platformUserId: extractPlatformUserId(account),
+      refreshToken: '',
+      tokenExpiresAt: '',
     });
     setRebindVerifyResult(null);
     setRebindFocusTrigger((value) => value + 1);
@@ -337,7 +340,7 @@ export default function Accounts() {
 
   const closeRebindPanel = () => {
     setRebindTarget(null);
-    setRebindForm({ accessToken: '', platformUserId: '' });
+    setRebindForm({ accessToken: '', platformUserId: '', refreshToken: '', tokenExpiresAt: '' });
     setRebindVerifyResult(null);
     setRebindVerifying(false);
     setRebindSaving(false);
@@ -391,11 +394,18 @@ export default function Accounts() {
       toast.error('请先验证新的 Session Token 成功');
       return;
     }
+    const isSub2ApiRebindTarget = ((rebindTarget?.site?.platform || '').toLowerCase() === 'sub2api');
     setRebindSaving(true);
     try {
       await api.rebindAccountSession(rebindTarget.id, {
         accessToken: rebindForm.accessToken.trim(),
         platformUserId: rebindForm.platformUserId ? Number.parseInt(rebindForm.platformUserId, 10) : undefined,
+        refreshToken: isSub2ApiRebindTarget && rebindForm.refreshToken.trim()
+          ? rebindForm.refreshToken.trim()
+          : undefined,
+        tokenExpiresAt: isSub2ApiRebindTarget && rebindForm.tokenExpiresAt.trim()
+          ? Number.parseInt(rebindForm.tokenExpiresAt, 10)
+          : undefined,
       });
       toast.success('账号重新绑定成功，状态已恢复');
       closeRebindPanel();
@@ -724,6 +734,27 @@ export default function Accounts() {
               style={inputStyle}
             />
           </div>
+          {isRebindSub2Api && (
+            <>
+              <div style={{ display: 'grid', gridTemplateColumns: 'minmax(0, 1fr) 220px', gap: 10, marginBottom: 4 }}>
+                <input
+                  placeholder="Sub2API refresh_token（可选）"
+                  value={rebindForm.refreshToken}
+                  onChange={(e) => setRebindForm((prev) => ({ ...prev, refreshToken: e.target.value.trim() }))}
+                  style={{ ...inputStyle, fontFamily: 'var(--font-mono)' }}
+                />
+                <input
+                  placeholder="token_expires_at（可选）"
+                  value={rebindForm.tokenExpiresAt}
+                  onChange={(e) => setRebindForm((prev) => ({ ...prev, tokenExpiresAt: e.target.value.replace(/\D/g, '') }))}
+                  style={inputStyle}
+                />
+              </div>
+              <div style={{ fontSize: 12, color: 'var(--color-text-muted)', marginBottom: 10 }}>
+                留空将保持原有 refresh_token 不变。配置后可用于托管自动续期。
+              </div>
+            </>
+          )}
 
           {rebindVerifyResult && rebindVerifyResult.success && rebindVerifyResult.tokenType === 'session' && (
             <div className="alert alert-success animate-scale-in" style={{ marginBottom: 10 }}>