diff --git a/blade-auth/src/main/java/org/springblade/auth/support/BladeJwtTokenEnhancer.java b/blade-auth/src/main/java/org/springblade/auth/support/BladeJwtTokenEnhancer.java
index 314ff2a2..f7321d75 100644
--- a/blade-auth/src/main/java/org/springblade/auth/support/BladeJwtTokenEnhancer.java
+++ b/blade-auth/src/main/java/org/springblade/auth/support/BladeJwtTokenEnhancer.java
@@ -82,8 +82,10 @@ public class BladeJwtTokenEnhancer implements TokenEnhancer {
 
 			if (jwtProperties.getSingle()) {
 				OAuth2RefreshToken oAuth2RefreshToken = oAuth2AccessToken.getRefreshToken();
-				String refreshTokenValue = oAuth2RefreshToken.getValue();
-				JwtUtil.addRefreshToken(tenantId, clientId, userId, refreshTokenValue, accessToken.getExpiresIn() * 168);
+				if(oAuth2RefreshToken!=null){
+					String refreshTokenValue = oAuth2RefreshToken.getValue();
+					JwtUtil.addRefreshToken(tenantId, clientId, userId, refreshTokenValue, accessToken.getExpiresIn() * 168);
+				}
 			}
 		}