diff --git a/luoo_user/src/main/java/com/luoo/user/service/LotteryService.java b/luoo_user/src/main/java/com/luoo/user/service/LotteryService.java
index 48ad7ea..9db3cda 100644
--- a/luoo_user/src/main/java/com/luoo/user/service/LotteryService.java
+++ b/luoo_user/src/main/java/com/luoo/user/service/LotteryService.java
@@ -350,6 +350,12 @@ public class LotteryService {
         // 校验用户是否可参与
         UserInfo userInfo = userInfoDao.findById(userLoginDto.getUserId()).get();
 
+        // 已参与抽奖，不能再次参与
+        LotteryUser byLotteryIdAndUserId = lotteryUserDao.findByLotteryIdAndUserId(id, userLoginDto.getUserId());
+        if(byLotteryIdAndUserId != null) {
+            throw new BizException(ErrorConstants.ALREADY_PARTICIPATED);
+        }
+
         Integer participant = lottery.getParticipant();
         if (Objects.equals(participant, PointEnums.LOTTERY_ALL_MEMBER.getCode())) {
             // 会员可参与