diff --git a/src/main/java/me/zhyd/oauth/request/AuthDefaultRequest.java b/src/main/java/me/zhyd/oauth/request/AuthDefaultRequest.java
index 0e2e8a4d7898291135862e5e6d1881aefe2c3d74..d119c95fc9569e2108bf579d76865824a24beb1a 100644
--- a/src/main/java/me/zhyd/oauth/request/AuthDefaultRequest.java
+++ b/src/main/java/me/zhyd/oauth/request/AuthDefaultRequest.java
@@ -1,5 +1,6 @@
 package me.zhyd.oauth.request;
 
+import com.alibaba.fastjson.JSON;
 import com.xkcoding.http.util.UrlUtil;
 import me.zhyd.oauth.cache.AuthDefaultStateCache;
 import me.zhyd.oauth.cache.AuthStateCache;
@@ -295,4 +296,14 @@ public abstract class AuthDefaultRequest implements AuthRequest {
         return encode ? UrlUtil.urlEncode(scopeStr) : scopeStr;
     }
 
+
+    /**
+     * 获取一个AuthConfig的拷贝
+     *
+     * @return AuthConfig
+     */
+    public AuthConfig copyConfig() {
+        if (config == null) return null;
+        return JSON.parseObject(JSON.toJSONString(config), AuthConfig.class);
+    }
 }