diff --git a/blade-auth/src/main/java/org/springblade/auth/granter/CaptchaTokenGranter.java b/blade-auth/src/main/java/org/springblade/auth/granter/CaptchaTokenGranter.java
index 9b96c70d..74aed7ce 100644
--- a/blade-auth/src/main/java/org/springblade/auth/granter/CaptchaTokenGranter.java
+++ b/blade-auth/src/main/java/org/springblade/auth/granter/CaptchaTokenGranter.java
@@ -53,6 +53,8 @@ public class CaptchaTokenGranter extends AbstractTokenGranter {
 		// 判断验证码
 		if (code == null || !StringUtil.equalsIgnoreCase(redisCode, code)) {
 			throw new UserDeniedAuthorizationException(TokenUtil.CAPTCHA_NOT_CORRECT);
+		} else {
+			bladeRedis.del(CacheNames.CAPTCHA_KEY + key);
 		}
 
 		Map<String, String> parameters = new LinkedHashMap<String, String>(tokenRequest.getRequestParameters());