diff --git a/oidc/src/main/java/com/tuoheng/oauth/oidc/config/SecurityConfig.java b/oidc/src/main/java/com/tuoheng/oauth/oidc/config/SecurityConfig.java
index 053b662..d88a450 100644
--- a/oidc/src/main/java/com/tuoheng/oauth/oidc/config/SecurityConfig.java
+++ b/oidc/src/main/java/com/tuoheng/oauth/oidc/config/SecurityConfig.java
@@ -33,6 +33,9 @@ import org.springframework.web.cors.CorsConfiguration;
 import org.springframework.web.cors.CorsConfigurationSource;
 import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
 
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import java.io.IOException;
 import java.security.KeyPair;
 import java.security.KeyPairGenerator;
 import java.security.NoSuchAlgorithmException;
@@ -46,7 +49,25 @@ import java.util.UUID;
 @Configuration
 public class SecurityConfig {
 
+    // 自定义认证入口点，保留client_id参数
+    public static class CustomLoginUrlAuthenticationEntryPoint extends LoginUrlAuthenticationEntryPoint {
+        public CustomLoginUrlAuthenticationEntryPoint(String loginFormUrl) {
+            super(loginFormUrl);
+        }
 
+        @Override
+        protected String determineUrlToUseForThisRequest(HttpServletRequest request, HttpServletResponse response, org.springframework.security.core.AuthenticationException exception) {
+            String loginUrl = super.determineUrlToUseForThisRequest(request, response, exception);
+            
+            // 获取client_id参数
+            String clientId = request.getParameter("client_id");
+            if (clientId != null && !clientId.isEmpty()) {
+                loginUrl += "?client_id=" + clientId;
+            }
+            
+            return loginUrl;
+        }
+    }
 
     // 配置授权服务器安全过滤器链
     @Bean
@@ -58,7 +79,7 @@ public class SecurityConfig {
                 .oidc(Customizer.withDefaults());  // 启用 OpenID Connect
 
         http.exceptionHandling(exceptions ->
-                exceptions.authenticationEntryPoint(new LoginUrlAuthenticationEntryPoint("/login"))
+                exceptions.authenticationEntryPoint(new CustomLoginUrlAuthenticationEntryPoint("/login"))
         );
 
         return http.build();
diff --git a/oidc/src/main/java/com/tuoheng/oauth/oidc/controller/LoginController.java b/oidc/src/main/java/com/tuoheng/oauth/oidc/controller/LoginController.java
index 0f92908..96d23f2 100644
--- a/oidc/src/main/java/com/tuoheng/oauth/oidc/controller/LoginController.java
+++ b/oidc/src/main/java/com/tuoheng/oauth/oidc/controller/LoginController.java
@@ -2,6 +2,7 @@ package com.tuoheng.oauth.oidc.controller;
 
 import org.springframework.security.web.csrf.CsrfToken;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.ResponseBody;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -15,7 +16,7 @@ public class LoginController {
 
     @GetMapping("/login")
     @ResponseBody
-    public String login(HttpServletRequest request) throws IOException {
+    public String login(HttpServletRequest request, @RequestParam(value = "client_id", required = false) String clientId) throws IOException {
         // 读取静态HTML文件
         String htmlContent = new String(Files.readAllBytes(Paths.get("src/main/resources/static/login.html")));
         
@@ -27,6 +28,17 @@ public class LoginController {
                 "id=\"csrf-parameter\" name=\"" + csrfToken.getParameterName() + "\" value=\"" + csrfToken.getToken() + "\"");
         }
         
+        // 如果有client_id参数，在页面中显示
+        if (clientId != null && !clientId.isEmpty()) {
+            // 在页面标题中显示client_id
+            htmlContent = htmlContent.replace("<h1>OIDC 登录</h1>", 
+                "<h1>OIDC 登录 - " + clientId + "</h1>");
+            
+            // 在页面中添加client_id信息
+            htmlContent = htmlContent.replace("<p>请输入您的凭据以继续</p>", 
+                "<p>请输入您的凭据以继续</p><p style=\"color: #666; font-size: 12px; margin-top: 5px;\">客户端: " + clientId + "</p>");
+        }
+        
         return htmlContent;
     }
 } 
\ No newline at end of file