diff --git a/pig-auth/src/main/java/com/pig4cloud/pig/auth/config/AuthorizationServerConfiguration.java b/pig-auth/src/main/java/com/pig4cloud/pig/auth/config/AuthorizationServerConfiguration.java
index 8f1d0b8c..d41ea5d9 100755
--- a/pig-auth/src/main/java/com/pig4cloud/pig/auth/config/AuthorizationServerConfiguration.java
+++ b/pig-auth/src/main/java/com/pig4cloud/pig/auth/config/AuthorizationServerConfiguration.java
@@ -117,9 +117,11 @@ public class AuthorizationServerConfiguration {
 	private AuthenticationConverter accessTokenRequestConverter() {
 		return new DelegatingAuthenticationConverter(Arrays.asList(
 				new OAuth2ResourceOwnerPasswordAuthenticationConverter(),
-				new OAuth2ResourceOwnerSmsAuthenticationConverter(), new OAuth2RefreshTokenAuthenticationConverter(),
-				new OAuth2ClientCredentialsAuthenticationConverter(),
-				new OAuth2AuthorizationCodeAuthenticationConverter(),
+				new OAuth2ResourceOwnerSmsAuthenticationConverter(),
+				// OAuth2TokenEndpointFilter中构造的DelegatingAuthenticationConverter中已经创建了这三个，会重复调用
+				// new OAuth2RefreshTokenAuthenticationConverter(),
+				// new OAuth2ClientCredentialsAuthenticationConverter(),
+				// new OAuth2AuthorizationCodeAuthenticationConverter(),
 				new OAuth2AuthorizationCodeRequestAuthenticationConverter()));
 	}