diff --git a/backend/services/trading-service/src/application/services/asset.service.ts b/backend/services/trading-service/src/application/services/asset.service.ts
index b8abb536..fb17ae4b 100644
--- a/backend/services/trading-service/src/application/services/asset.service.ts
+++ b/backend/services/trading-service/src/application/services/asset.service.ts
@@ -243,8 +243,10 @@ export class AssetService {
 
       const result = await response.json();
       // totalDistributed = 用户已挖总量 + 系统已挖总量
-      if (result?.totalDistributed) {
-        return new Money(result.totalDistributed);
+      // mining-service 返回格式: { success: true, data: { totalDistributed: "..." } }
+      const totalDistributed = result?.data?.totalDistributed || result?.totalDistributed;
+      if (totalDistributed) {
+        return new Money(totalDistributed);
       }
       return Money.zero();
     } catch (error) {