diff --git a/rc-service/rc-service-other/other-application/src/main/java/com/red/circle/other/app/command/activity/RankingRewardGrantCmdExe.java b/rc-service/rc-service-other/other-application/src/main/java/com/red/circle/other/app/command/activity/RankingRewardGrantCmdExe.java
index b69d59e9..459b2396 100644
--- a/rc-service/rc-service-other/other-application/src/main/java/com/red/circle/other/app/command/activity/RankingRewardGrantCmdExe.java
+++ b/rc-service/rc-service-other/other-application/src/main/java/com/red/circle/other/app/command/activity/RankingRewardGrantCmdExe.java
@@ -18,16 +18,11 @@ import com.red.circle.other.inner.model.cmd.material.GivePropsBackpackCmd;
 import com.red.circle.other.inner.model.dto.activity.props.ActivityRewardPropsDTO;
 import com.red.circle.other.inner.model.dto.sys.ActivityConfigDTO;
 import com.red.circle.tool.core.collection.CollectionUtils;
-import com.red.circle.tool.core.date.DateFormatConstant;
-import com.red.circle.tool.core.date.ZonedDateTimeAsiaRiyadhUtils;
-import com.red.circle.tool.core.date.ZonedDateTimeUtils;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Component;
 
-import java.time.DayOfWeek;
 import java.time.LocalDateTime;
-import java.time.ZoneId;
 import java.util.*;
 import java.util.concurrent.TimeUnit;
 import java.util.stream.Collectors;
@@ -51,12 +46,14 @@ public class RankingRewardGrantCmdExe {
 
     /**
      * 处理排名奖励变化.
+     * 通过 cycleKey 变化检测周切换，而非精确时间点判断，避免边界值导致的道具多发/漏收问题.
      */
     public void execute(String activityType, String origin, String cycleKey,
                        String templateId, List<RankingUserData> currentRankingUsers,
                        ActivityConfigVO activityConfig) {
         
-        RankingRewardSnapshot lastSnapshot = snapshotService.getLatestSnapshot(activityType, origin, isWeeklyReset() ? getLastWeekDate() : cycleKey);
+        // 获取最新快照（不限 cycleKey，用于跨周期对比）
+        RankingRewardSnapshot lastSnapshot = snapshotService.getLatestSnapshot(activityType, origin, cycleKey);
         
         Map<Integer, RankingUserData> currentRankMap = currentRankingUsers.stream()
             .collect(Collectors.toMap(RankingUserData::getRank, u -> u));
@@ -67,16 +64,21 @@ public class RankingRewardGrantCmdExe {
                 .collect(Collectors.toMap(RankingRewardSnapshot.RankingUserSnapshot::getUserId, u -> u));
         }
 
-        // 检查是否为星期一0点(活动重置时间)
-        if (isWeeklyReset()) {
-            log.info("星期一0点，活动重置，收回所有用户道具");
+        // 通过 cycleKey 变化检测周切换，而不是依赖精确的周一0点时间判断
+        boolean isNewCycle = lastSnapshot != null 
+            && !cycleKey.equals(lastSnapshot.getCycleKey());
+        
+        if (isNewCycle) {
+            log.info("检测到周期切换, 旧cycleKey: {}, 新cycleKey: {}, 收回所有旧奖励",
+                lastSnapshot.getCycleKey(), cycleKey);
             revokeAllUserRewards(lastUserMap);
-
-            return;
+            // 收回后清空 lastUserMap，避免 processRewardChanges 用旧数据重复对比
+            lastUserMap = new HashMap<>();
         }
 
         processRewardChanges(currentRankMap, lastUserMap, activityConfig);
         
+        // 始终保存快照，确保下次执行有正确的对比基准
         saveNewSnapshot(activityType, origin, cycleKey, templateId, currentRankingUsers, activityConfig);
     }
 
@@ -114,19 +116,6 @@ public class RankingRewardGrantCmdExe {
         }
     }
 
-    /**
-     * 判断是否为星期一0点(活动重置时间).
-     */
-    private boolean isWeeklyReset() {
-        LocalDateTime now = ZonedDateTimeAsiaRiyadhUtils.now().toLocalDateTime();
-        return now.getDayOfWeek() == DayOfWeek.MONDAY && now.getHour() == 0 && now.getMinute() == 0;
-    }
-
-    private String getLastWeekDate() {
-        return ZonedDateTimeUtils.format(ZonedDateTimeAsiaRiyadhUtils.getLastWeekMonday(),
-                DateFormatConstant.yyyyMMdd);
-    }
-
 
     /**
      * 收回所有用户的奖励(星期一重置).