diff --git a/ruoyi-cai/src/main/java/com/ruoyi/cai/lottery/LotteryService.java b/ruoyi-cai/src/main/java/com/ruoyi/cai/lottery/LotteryService.java
index c0efa391..e71d2921 100644
--- a/ruoyi-cai/src/main/java/com/ruoyi/cai/lottery/LotteryService.java
+++ b/ruoyi-cai/src/main/java/com/ruoyi/cai/lottery/LotteryService.java
@@ -6,6 +6,7 @@ import com.ruoyi.cai.domain.PrizeOnline;
 import com.ruoyi.cai.domain.User;
 import com.ruoyi.cai.enums.GenderEnum;
 import com.ruoyi.cai.enums.SystemConfigEnum;
+import com.ruoyi.cai.enums.prize.PrizeTypeEnum;
 import com.ruoyi.cai.manager.IdManager;
 import com.ruoyi.cai.manager.SystemConfigManager;
 import com.ruoyi.cai.service.AccountService;
@@ -140,21 +141,28 @@ public class LotteryService {
         PrizeOnline winPrize = null;
         boolean isResetContinuousDraws = false; // 是否需要重置累计抽数
 
-        // 3.1 保底规则判断（优先触发）
+        // 3.1 保底规则判断（优先触发，仅大奖）
         winPrize = checkGuaranteeRule(validPrizes, newContinuousDraws);
         if (winPrize != null) {
-            // 触发保底中奖，需要重置累计抽数
+            // 触发大奖保底，需要重置累计抽数
             isResetContinuousDraws = true;
-            log.info("用户{}触发保底，中得奖品{}，累计抽数将重置", userId, winPrize.getPrizeName());
+            log.info("用户{}触发大奖保底，中得奖品{}，累计抽数将重置", userId, winPrize.getPrizeName());
         }
 
         // 3.2 未触发保底，执行概率抽奖（含最低中奖抽数过滤）
         if (winPrize == null) {
             winPrize = executeProbabilityDraw(validPrizes, newContinuousDraws);
             if (winPrize != null) {
-                // 概率抽奖中奖，需要重置累计抽数
-                isResetContinuousDraws = true;
-                log.info("用户{}概率抽奖中得奖品{}，累计抽数将重置", userId, winPrize.getPrizeName());
+                // 判断中奖类型
+                if (PrizeTypeEnum.GOOD.getCode().equals(winPrize.getPrizeType())) {
+                    // 中大奖，需要重置累计抽数
+                    isResetContinuousDraws = true;
+                    log.info("用户{}概率抽奖中得大奖{}，累计抽数将重置", userId, winPrize.getPrizeName());
+                } else {
+                    // 中普通奖，不重置累计抽数
+                    log.info("用户{}概率抽奖中得普通奖{}，累计抽数继续累加到{}",
+                        userId, winPrize.getPrizeName(), newContinuousDraws);
+                }
             }
         }
 
@@ -164,7 +172,6 @@ public class LotteryService {
             // 谢谢惠顾不重置累计抽数
             log.info("用户{}未中奖，谢谢惠顾，累计抽数继续累加到{}", userId, newContinuousDraws);
         }
-
         // 步骤4：持久化抽奖记录+更新缓存
         winPrizeAfter(winPrize, user, drawPoint, newContinuousDraws, isResetContinuousDraws);
         // 步骤5：返回中奖奖品
@@ -172,20 +179,31 @@ public class LotteryService {
     }
 
     /**
-     * 保底规则判断
+     * 保底规则判断（仅对大奖生效）
      * @param validPrizes 有效奖品列表
      * @param currentDraws 当前累计抽数
      * @return 保底中奖的奖品（无则返回null）
      */
     private PrizeOnline checkGuaranteeRule(List<PrizeOnline> validPrizes, int currentDraws) {
-        // 按保底抽数升序排序，优先触发保底抽数小的奖品
-        List<PrizeOnline> sortedPrizes = new ArrayList<>(validPrizes);
-        sortedPrizes.sort(Comparator.comparingInt(PrizeOnline::getGuaranteeDraws));
-
-        for (PrizeOnline prize : sortedPrizes) {
+        // 筛选出有保底机制的大奖（prizeType = 3）
+        List<PrizeOnline> grandPrizesWithGuarantee = new ArrayList<>();
+        for (PrizeOnline prize : validPrizes) {
+            // 只有大奖才有保底机制
+            if (PrizeTypeEnum.GOOD.getCode().equals(prize.getPrizeType()) &&
+                prize.getGuaranteeDraws() != null && prize.getGuaranteeDraws() > 0) {
+                grandPrizesWithGuarantee.add(prize);
+            }
+        }
+        if (grandPrizesWithGuarantee.isEmpty()) {
+            log.debug("累计抽数{}：无配置保底的大奖", currentDraws);
+            return null;
+        }
+        // 按保底抽数升序排序，优先触发保底抽数小的大奖
+        grandPrizesWithGuarantee.sort(Comparator.comparingInt(PrizeOnline::getGuaranteeDraws));
+        for (PrizeOnline prize : grandPrizesWithGuarantee) {
             int guaranteeDraws = prize.getGuaranteeDraws();
-            if (guaranteeDraws > 0 && currentDraws >= guaranteeDraws) {
-                log.info("触发保底规则，累计抽数{} >= 保底抽数{}，用户抽中奖品：{}",
+            if (currentDraws >= guaranteeDraws) {
+                log.info("触发大奖保底规则，累计抽数{} >= 保底抽数{}，用户抽中大奖：{}",
                     currentDraws, guaranteeDraws, prize.getPrizeName());
                 return prize;
             }