diff --git a/luoo_common/src/main/java/constants/ErrorConstants.java b/luoo_common/src/main/java/constants/ErrorConstants.java
index 2dd893a..269cb6c 100644
--- a/luoo_common/src/main/java/constants/ErrorConstants.java
+++ b/luoo_common/src/main/java/constants/ErrorConstants.java
@@ -61,6 +61,7 @@ public class ErrorConstants {
   public static final String DRAW_TIME_CANNOT_BE_BEFORE_APPLY_END_TIME = "开奖时间不能在报名结束时间之前";
   public static final String APPLY_END_TIME_CANNOT_BE_BEFORE_APPLY_START_TIME = "报名结束时间不能在报名开始时间之前";
   public static final String POINT_NOT_ENOUGH = "积分不足";
+  public static final String ONLY_ONE_CITY = "只能填写一个城市";
 
   // 积分部分
   public static final String DAILY_SIGN_ALREADY = "今日已签到";
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 b8805be..94895ab 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
@@ -136,6 +136,11 @@ public class LotteryService {
                 throw new BizException(ErrorConstants.TICKET_CITY_IS_REQUIRED);
             }
 
+            // 只能填写一个城市
+            if (lotteryRegionList.size() > 1) {
+                throw new BizException(ErrorConstants.ONLY_ONE_CITY);
+            }
+
             Integer num = 0;
             for (LotteryRegion lotteryRegion : lotteryRegionList) {
                 Region regionById = regionService.getRegionById(lotteryRegion.getRegionId());
@@ -207,6 +212,11 @@ public class LotteryService {
                 throw new BizException(ErrorConstants.TICKET_CITY_IS_REQUIRED);
             }
 
+            // 只能填写一个城市
+            if (lotteryRegionList.size() > 1) {
+                throw new BizException(ErrorConstants.ONLY_ONE_CITY);
+            }
+
             Integer num = 0;
 
             lotteryRegionDao.deleteByLotteryId(id);