diff --git a/backend/services/mining-service/src/api/controllers/mining.controller.ts b/backend/services/mining-service/src/api/controllers/mining.controller.ts
index bb1b67e0..8a559b9b 100644
--- a/backend/services/mining-service/src/api/controllers/mining.controller.ts
+++ b/backend/services/mining-service/src/api/controllers/mining.controller.ts
@@ -68,7 +68,8 @@ export class MiningController {
 
     // 计算挖矿进度（用实际已分配数量 / 分配池总量）
     const distributionPool = Number(config.distributionPool || 0);
-    const remainingDistribution = Number(config.remainingDistribution || 0);
+    // 剩余分配池 = 总池 - 实际已分配（保持数据一致性）
+    const remainingDistribution = Math.max(0, distributionPool - totalDistributedDecimal);
     const miningProgress = distributionPool > 0 ? (totalDistributedDecimal / distributionPool) * 100 : 0;
 
     // 计算剩余分钟数