diff --git a/src/app/admin/page.tsx b/src/app/admin/page.tsx
index a8e08fc..0060520 100644
--- a/src/app/admin/page.tsx
+++ b/src/app/admin/page.tsx
@@ -6340,6 +6340,7 @@ const RegistrationConfigComponent = ({
     OIDCClientId: string;
     OIDCClientSecret: string;
     OIDCButtonText: string;
+    OIDCMinTrustLevel: number;
   }>({
     EnableRegistration: false,
     RegistrationRequireTurnstile: false,
@@ -6356,6 +6357,7 @@ const RegistrationConfigComponent = ({
     OIDCClientId: '',
     OIDCClientSecret: '',
     OIDCButtonText: '',
+    OIDCMinTrustLevel: 0,
   });
 
   useEffect(() => {
@@ -6376,6 +6378,7 @@ const RegistrationConfigComponent = ({
         OIDCClientId: config.SiteConfig.OIDCClientId || '',
         OIDCClientSecret: config.SiteConfig.OIDCClientSecret || '',
         OIDCButtonText: config.SiteConfig.OIDCButtonText || '',
+        OIDCMinTrustLevel: config.SiteConfig.OIDCMinTrustLevel ?? 0,
       });
     }
   }, [config]);
@@ -6934,7 +6937,31 @@ const RegistrationConfigComponent = ({
             className='w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-800 text-gray-900 dark:text-gray-100 focus:ring-2 focus:ring-green-500 focus:border-transparent'
           />
           <p className='mt-1 text-xs text-gray-500 dark:text-gray-400'>
-            自定义OIDC登录按钮显示的文字，如"使用企业账号登录"、"使用SSO登录"等。留空则显示默认文字"使用OIDC登录"
+            自定义OIDC登录按钮显示的文字,如"使用企业账号登录"、"使用SSO登录"等。留空则显示默认文字"使用OIDC登录"
+          </p>
+        </div>
+
+        {/* OIDC最低信任等级 */}
+        <div>
+          <label className='block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2'>
+            最低信任等级
+          </label>
+          <input
+            type='number'
+            min='0'
+            max='4'
+            placeholder='0'
+            value={registrationSettings.OIDCMinTrustLevel === 0 ? '' : registrationSettings.OIDCMinTrustLevel}
+            onChange={(e) =>
+              setRegistrationSettings((prev) => ({
+                ...prev,
+                OIDCMinTrustLevel: e.target.value === '' ? 0 : parseInt(e.target.value),
+              }))
+            }
+            className='w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-800 text-gray-900 dark:text-gray-100 focus:ring-2 focus:ring-green-500 focus:border-transparent'
+          />
+          <p className='mt-1 text-xs text-gray-500 dark:text-gray-400'>
+            仅LinuxDo网站有效。设置为0时不判断，1-4表示最低信任等级要求
           </p>
         </div>
       </div>
diff --git a/src/app/api/admin/site/route.ts b/src/app/api/admin/site/route.ts
index 5ca0eb9..285f677 100644
--- a/src/app/api/admin/site/route.ts
+++ b/src/app/api/admin/site/route.ts
@@ -64,6 +64,7 @@ export async function POST(request: NextRequest) {
       OIDCClientId,
       OIDCClientSecret,
       OIDCButtonText,
+      OIDCMinTrustLevel,
     } = body as {
       SiteName: string;
       Announcement: string;
@@ -100,6 +101,7 @@ export async function POST(request: NextRequest) {
       OIDCClientId?: string;
       OIDCClientSecret?: string;
       OIDCButtonText?: string;
+      OIDCMinTrustLevel?: number;
     };
 
     // 参数校验
@@ -135,7 +137,8 @@ export async function POST(request: NextRequest) {
       (OIDCUserInfoEndpoint !== undefined && typeof OIDCUserInfoEndpoint !== 'string') ||
       (OIDCClientId !== undefined && typeof OIDCClientId !== 'string') ||
       (OIDCClientSecret !== undefined && typeof OIDCClientSecret !== 'string') ||
-      (OIDCButtonText !== undefined && typeof OIDCButtonText !== 'string')
+      (OIDCButtonText !== undefined && typeof OIDCButtonText !== 'string') ||
+      (OIDCMinTrustLevel !== undefined && typeof OIDCMinTrustLevel !== 'number')
     ) {
       return NextResponse.json({ error: '参数格式错误' }, { status: 400 });
     }
@@ -190,6 +193,7 @@ export async function POST(request: NextRequest) {
       OIDCClientId,
       OIDCClientSecret,
       OIDCButtonText,
+      OIDCMinTrustLevel,
     };
 
     // 写入数据库
diff --git a/src/app/api/auth/oidc/callback/route.ts b/src/app/api/auth/oidc/callback/route.ts
index 80889c5..4907ae4 100644
--- a/src/app/api/auth/oidc/callback/route.ts
+++ b/src/app/api/auth/oidc/callback/route.ts
@@ -213,6 +213,7 @@ export async function GET(request: NextRequest) {
       sub: oidcSub,
       email: userInfo.email,
       name: userInfo.name,
+      trust_level: userInfo.trust_level, // 提取trust_level字段
       timestamp: Date.now(),
     };
 
diff --git a/src/app/api/auth/oidc/complete-register/route.ts b/src/app/api/auth/oidc/complete-register/route.ts
index bd11e0f..f95652d 100644
--- a/src/app/api/auth/oidc/complete-register/route.ts
+++ b/src/app/api/auth/oidc/complete-register/route.ts
@@ -102,6 +102,18 @@ export async function POST(request: NextRequest) {
       );
     }
 
+    // 检查最低信任等级
+    const minTrustLevel = siteConfig.OIDCMinTrustLevel || 0;
+    if (minTrustLevel > 0) {
+      const userTrustLevel = oidcSession.trust_level ?? 0;
+      if (userTrustLevel < minTrustLevel) {
+        return NextResponse.json(
+          { error: `您的信任等级(${userTrustLevel})不满足最低要求(${minTrustLevel})` },
+          { status: 403 }
+        );
+      }
+    }
+
     // 检查是否与站长同名
     if (username === process.env.USERNAME) {
       return NextResponse.json(
diff --git a/src/app/api/auth/oidc/session-info/route.ts b/src/app/api/auth/oidc/session-info/route.ts
index 9bc049a..ae5b838 100644
--- a/src/app/api/auth/oidc/session-info/route.ts
+++ b/src/app/api/auth/oidc/session-info/route.ts
@@ -35,6 +35,7 @@ export async function GET(request: NextRequest) {
     return NextResponse.json({
       email: oidcSession.email,
       name: oidcSession.name,
+      trust_level: oidcSession.trust_level,
     });
   } catch (error) {
     return NextResponse.json(
diff --git a/src/app/oidc-register/page.tsx b/src/app/oidc-register/page.tsx
index 93215a8..45088db 100644
--- a/src/app/oidc-register/page.tsx
+++ b/src/app/oidc-register/page.tsx
@@ -103,6 +103,12 @@ function OIDCRegisterPageClient() {
               {oidcInfo.name && (
                 <>
                   名称: <strong>{oidcInfo.name}</strong>
+                  <br />
+                </>
+              )}
+              {oidcInfo.trust_level !== undefined && (
+                <>
+                  信任等级: <strong>{oidcInfo.trust_level}</strong>
                 </>
               )}
             </p>
diff --git a/src/lib/admin.types.ts b/src/lib/admin.types.ts
index bd51ec2..7396d44 100644
--- a/src/lib/admin.types.ts
+++ b/src/lib/admin.types.ts
@@ -48,6 +48,7 @@ export interface AdminConfig {
     OIDCClientId?: string; // OIDC Client ID
     OIDCClientSecret?: string; // OIDC Client Secret
     OIDCButtonText?: string; // OIDC登录按钮文字
+    OIDCMinTrustLevel?: number; // 最低信任等级（仅LinuxDo网站有效，为0时不判断）
   };
   UserConfig: {
     Users: {