diff --git a/game-server/app/servers/battle/handler/donateHandler.ts b/game-server/app/servers/battle/handler/donateHandler.ts
index eeef4c130..ed5202f3d 100644
--- a/game-server/app/servers/battle/handler/donateHandler.ts
+++ b/game-server/app/servers/battle/handler/donateHandler.ts
@@ -77,7 +77,7 @@ export class DonationHandler {
         let { boxRewards, fund } = getArmyDonateBoxBaseById(id);
         let { donateFund, donationLv } = await getDonation(code, serverId);
         let { boxRewardRatio, requireRewardRatio } = getArmyDonateBaseByLv(donationLv);
-        if (donateFund < fund * (100 + requireRewardRatio) )
+        if (donateFund < Math.floor(fund * (100 + requireRewardRatio)/100) )
             return resResult(STATUS.GUILD_DONATE_BOXS_NOT_GOT);
         boxRewards = boxRewards.map(({id, count})=>{
             return { id, count: count * (boxRewardRatio + 100) };