diff --git a/backend/services/mining-admin-service/src/infrastructure/kafka/cdc-sync.service.ts b/backend/services/mining-admin-service/src/infrastructure/kafka/cdc-sync.service.ts
index 1e1904d1..4f38677e 100644
--- a/backend/services/mining-admin-service/src/infrastructure/kafka/cdc-sync.service.ts
+++ b/backend/services/mining-admin-service/src/infrastructure/kafka/cdc-sync.service.ts
@@ -728,6 +728,9 @@ export class CdcSyncService implements OnModuleInit {
     const { payload } = event;
     // 只保留一条挖矿配置记录
     await tx.syncedMiningConfig.deleteMany({});
+    // mining-service 发布 secondDistribution，计算 minuteDistribution = secondDistribution * 60
+    const secondDistribution = parseFloat(payload.secondDistribution || '0');
+    const minuteDistribution = payload.minuteDistribution || (secondDistribution * 60).toString();
     await tx.syncedMiningConfig.create({
       data: {
         totalShares: payload.totalShares,
@@ -735,7 +738,7 @@ export class CdcSyncService implements OnModuleInit {
         remainingDistribution: payload.remainingDistribution,
         halvingPeriodYears: payload.halvingPeriodYears,
         currentEra: payload.currentEra || 1,
-        minuteDistribution: payload.minuteDistribution,
+        minuteDistribution: minuteDistribution,
         isActive: payload.isActive || false,
         activatedAt: payload.activatedAt ? new Date(payload.activatedAt) : null,
       },