diff --git a/backend/services/mining-admin-service/src/application/services/system-accounts.service.ts b/backend/services/mining-admin-service/src/application/services/system-accounts.service.ts
index 8bfab135..c6dc494e 100644
--- a/backend/services/mining-admin-service/src/application/services/system-accounts.service.ts
+++ b/backend/services/mining-admin-service/src/application/services/system-accounts.service.ts
@@ -66,86 +66,73 @@ export class SystemAccountsService {
 
   /**
    * 获取系统账户列表
-   * 从 CDC 同步的钱包系统账户表读取数据，并合并挖矿数据
-   *
-   * 数据匹配逻辑：
-   * 1. 钱包账户的 code 格式为 "CITY-440100"、"PROVINCE-440000" 等
-   * 2. 算力/挖矿账户的 accountType 格式为 "CITY_440100"、"PROVINCE_440000" 等
-   * 3. 需要从 code 提取区域代码，然后构建组合键进行匹配
+   * 以 synced_system_contributions 为主要数据源，显示所有省市账户
+   * 同时关联钱包数据和挖矿数据
    */
   async getSystemAccounts() {
-    // 从 CDC 同步的 SyncedWalletSystemAccount 表获取数据
-    const syncedAccounts = await this.prisma.syncedWalletSystemAccount.findMany({
-      orderBy: { accountType: 'asc' },
+    // 从 CDC 同步的 SyncedSystemContribution 获取算力数据（主要数据源）
+    const syncedContributions = await this.prisma.syncedSystemContribution.findMany({
+      orderBy: [{ accountType: 'asc' }, { regionCode: 'asc' }],
     });
 
-    // 从 CDC 同步的 SyncedSystemContribution 获取算力数据
-    const syncedContributions =
-      await this.prisma.syncedSystemContribution.findMany();
+    // 从 CDC 同步的 SyncedWalletSystemAccount 表获取钱包数据
+    const syncedWalletAccounts = await this.prisma.syncedWalletSystemAccount.findMany();
 
     // 从 mining-service 获取挖矿数据
     const miningDataMap = await this.fetchMiningServiceSystemAccounts();
 
-    // 构建算力数据映射 - 使用 accountType:regionCode 格式
-    const contributionMap = new Map<string, any>();
-    for (const contrib of syncedContributions) {
+    // 构建钱包数据映射
+    const walletMap = new Map<string, any>();
+    for (const wallet of syncedWalletAccounts) {
+      // 钱包账户的 code 格式为 "CITY-440100"、"PROVINCE-440000" 等
+      if (wallet.code) {
+        const regionCode = this.extractRegionCodeFromCode(wallet.code);
+        if (regionCode) {
+          const key = `${wallet.accountType}:${regionCode}`;
+          walletMap.set(key, wallet);
+        }
+      }
+      // 同时用 accountType 作为 key（用于 OPERATION、HEADQUARTERS 等）
+      walletMap.set(wallet.accountType, wallet);
+    }
+
+    // 构建返回数据 - 以算力账户为主
+    const accounts = syncedContributions.map((contrib) => {
       const key = contrib.regionCode
         ? `${contrib.accountType}:${contrib.regionCode}`
         : contrib.accountType;
-      contributionMap.set(key, contrib);
-    }
 
-    // 构建返回数据
-    const accounts = syncedAccounts.map((account) => {
-      // 尝试匹配算力数据
-      let contrib = null;
-      let miningData = null;
-
-      // 1. 尝试用 accountType:regionCode 匹配（针对省市账户）
-      if (account.code) {
-        // 从 code 提取区域代码（如 "CITY-440100" -> "440100"）
-        const regionCode = this.extractRegionCodeFromCode(account.code);
-        if (regionCode) {
-          // 使用 accountType:regionCode 格式（如 CITY:440100）
-          const matchKey = `${account.accountType}:${regionCode}`;
-          contrib = contributionMap.get(matchKey);
-          miningData = miningDataMap.get(matchKey);
-        }
-      }
-
-      // 2. 回退到直接 accountType 匹配（汇总账户，如 OPERATION, HEADQUARTERS）
-      if (!contrib) {
-        contrib = contributionMap.get(account.accountType);
-      }
-      if (!miningData) {
-        miningData = miningDataMap.get(account.accountType);
-      }
+      const wallet = walletMap.get(key) || walletMap.get(contrib.accountType);
+      const miningData = miningDataMap.get(key) || miningDataMap.get(contrib.accountType);
 
       return {
-        id: account.originalId,
-        accountType: account.accountType,
-        name: account.name,
-        code: account.code,
-        provinceId: account.provinceId,
-        cityId: account.cityId,
-        shareBalance: account.shareBalance.toString(),
-        usdtBalance: account.usdtBalance.toString(),
-        greenPointBalance: account.greenPointBalance.toString(),
-        frozenShare: account.frozenShare.toString(),
-        frozenUsdt: account.frozenUsdt.toString(),
-        totalInflow: account.totalInflow.toString(),
-        totalOutflow: account.totalOutflow.toString(),
-        blockchainAddress: account.blockchainAddress,
-        isActive: account.isActive,
-        contributionBalance: contrib?.contributionBalance?.toString() || '0',
-        contributionNeverExpires: contrib?.contributionNeverExpires || false,
+        id: contrib.id,
+        accountType: contrib.accountType,
+        regionCode: contrib.regionCode,
+        name: contrib.name,
+        code: wallet?.code || null,
+        provinceId: wallet?.provinceId || null,
+        cityId: wallet?.cityId || null,
+        // 钱包余额（如果有钱包账户）
+        shareBalance: wallet?.shareBalance?.toString() || '0',
+        usdtBalance: wallet?.usdtBalance?.toString() || '0',
+        greenPointBalance: wallet?.greenPointBalance?.toString() || '0',
+        frozenShare: wallet?.frozenShare?.toString() || '0',
+        frozenUsdt: wallet?.frozenUsdt?.toString() || '0',
+        totalInflow: wallet?.totalInflow?.toString() || '0',
+        totalOutflow: wallet?.totalOutflow?.toString() || '0',
+        blockchainAddress: wallet?.blockchainAddress || null,
+        isActive: wallet?.isActive ?? true,
+        // 算力数据
+        contributionBalance: contrib.contributionBalance?.toString() || '0',
+        contributionNeverExpires: contrib.contributionNeverExpires || false,
         // 挖矿数据
         totalMined: miningData?.totalMined || '0',
         availableBalance: miningData?.availableBalance || '0',
         miningContribution: miningData?.totalContribution || '0',
         miningLastSyncedAt: miningData?.lastSyncedAt || null,
-        syncedAt: account.syncedAt,
-        source: 'cdc',
+        syncedAt: contrib.syncedAt,
+        source: 'contribution',
       };
     });