diff --git a/webapp/services/BattleBoxService.php b/webapp/services/BattleBoxService.php
index e7f9dc40..eaf55b49 100644
--- a/webapp/services/BattleBoxService.php
+++ b/webapp/services/BattleBoxService.php
@@ -90,7 +90,7 @@ class BattleBoxService {
                     //没掉完
                     $completionDegree = $yesterDayDropTotal / $yesterDayAllocNum;
                 }
-                $allocableNum = min($maxNumLimit, $maxNum * $completionDegree);
+                $allocableNum = min($maxNumLimit, $yesterDayAllocNum * $completionDegree);
             }
             if ($allocableNum > 0) {
                 self::setDailyPhaseAllocNum($currPhase, myself()->_getNowDaySeconds(), $allocableNum);