diff --git a/pig-auth/src/main/java/com/pig4cloud/pig/auth/support/base/OAuth2ResourceOwnerBaseAuthenticationProvider.java b/pig-auth/src/main/java/com/pig4cloud/pig/auth/support/base/OAuth2ResourceOwnerBaseAuthenticationProvider.java
index 22044ec1..5f1aa468 100644
--- a/pig-auth/src/main/java/com/pig4cloud/pig/auth/support/base/OAuth2ResourceOwnerBaseAuthenticationProvider.java
+++ b/pig-auth/src/main/java/com/pig4cloud/pig/auth/support/base/OAuth2ResourceOwnerBaseAuthenticationProvider.java
@@ -147,14 +147,14 @@ public abstract class OAuth2ResourceOwnerBaseAuthenticationProvider<T extends OA
 					.principal(usernamePasswordAuthentication)
 					.authorizationServerContext(AuthorizationServerContextHolder.getContext())
 					.authorizedScopes(authorizedScopes)
-					.authorizationGrantType(AuthorizationGrantType.PASSWORD)
+					.authorizationGrantType(resouceOwnerBaseAuthentication.getAuthorizationGrantType())
 					.authorizationGrant(resouceOwnerBaseAuthentication);
 			// @formatter:on
 
 			OAuth2Authorization.Builder authorizationBuilder = OAuth2Authorization
 				.withRegisteredClient(registeredClient)
 				.principalName(usernamePasswordAuthentication.getName())
-				.authorizationGrantType(AuthorizationGrantType.PASSWORD)
+				.authorizationGrantType(resouceOwnerBaseAuthentication.getAuthorizationGrantType())
 				// 0.4.0 新增的方法
 				.authorizedScopes(authorizedScopes);