diff --git a/backend/services/mining-admin-service/src/application/services/dashboard.service.ts b/backend/services/mining-admin-service/src/application/services/dashboard.service.ts
index c72324d0..b6a796fe 100644
--- a/backend/services/mining-admin-service/src/application/services/dashboard.service.ts
+++ b/backend/services/mining-admin-service/src/application/services/dashboard.service.ts
@@ -536,16 +536,8 @@ export class DashboardService {
       if (miningResponse.ok) {
         const miningResult = await miningResponse.json();
         const miningData = miningResult.data || miningResult;
-        // 使用 distributionPool - remainingDistribution 计算已分配
-        // 分配池是 200万（不是100亿），remainingDistribution 是剩余待分配量
-        // 已分配 = 分配池 - 剩余
-        const distributionPool = new Decimal(
-          miningData.distributionPool || '2000000',
-        );
-        const remaining = new Decimal(
-          miningData.remainingDistribution || '2000000',
-        );
-        totalDistributed = distributionPool.minus(remaining).toString();
+        // 直接使用 totalDistributed（所有用户 totalMined 的总和）
+        totalDistributed = miningData.totalDistributed || '0';
       }
     } catch (error) {
       this.logger.warn(`Failed to fetch mining service data: ${error.message}`);
diff --git a/backend/services/mining-service/src/api/controllers/admin.controller.ts b/backend/services/mining-service/src/api/controllers/admin.controller.ts
index f7c12ffa..4cfe80b2 100644
--- a/backend/services/mining-service/src/api/controllers/admin.controller.ts
+++ b/backend/services/mining-service/src/api/controllers/admin.controller.ts
@@ -51,9 +51,12 @@ export class AdminController {
     const config = await this.prisma.miningConfig.findFirst();
     const accountCount = await this.prisma.miningAccount.count();
 
-    // 用户有效算力
-    const userContribution = await this.prisma.miningAccount.aggregate({
-      _sum: { totalContribution: true },
+    // 用户挖矿账户统计
+    const userMiningStats = await this.prisma.miningAccount.aggregate({
+      _sum: {
+        totalContribution: true,
+        totalMined: true,
+      },
     });
 
     // 系统账户算力
@@ -72,11 +75,14 @@ export class AdminController {
       isActive: config?.isActive || false,
       activatedAt: config?.activatedAt,
       currentEra: config?.currentEra || 0,
+      distributionPool: config?.distributionPool?.toString() || '0',
       remainingDistribution: config?.remainingDistribution?.toString() || '0',
       secondDistribution: config?.secondDistribution?.toString() || '0',
       accountCount,
       // 用户有效算力
-      totalContribution: userContribution._sum.totalContribution?.toString() || '0',
+      totalContribution: userMiningStats._sum.totalContribution?.toString() || '0',
+      // 已分配积分股（所有用户的 totalMined 总和）
+      totalDistributed: userMiningStats._sum.totalMined?.toString() || '0',
       // 全网理论算力（从 contribution-service 同步）
       networkTotalContribution: config?.networkTotalContribution?.toString() || '0',
       totalTreeCount: config?.totalTreeCount || 0,