diff --git a/backend/services/mining-admin-service/src/application/services/users.service.ts b/backend/services/mining-admin-service/src/application/services/users.service.ts
index 11484902..e9774bde 100644
--- a/backend/services/mining-admin-service/src/application/services/users.service.ts
+++ b/backend/services/mining-admin-service/src/application/services/users.service.ts
@@ -450,32 +450,214 @@ export class UsersService {
 
   /**
    * 获取用户引荐关系树
-   * TODO: 从 identity-service 同步推荐关系数据
    */
-  async getReferralTree(accountSequence: string, direction: string, depth: number) {
+  async getReferralTree(
+    accountSequence: string,
+    direction: string,
+    depth: number,
+  ) {
     const user = await this.prisma.syncedUser.findUnique({
       where: { accountSequence },
-      include: { contributionAccount: true },
+      include: {
+        contributionAccount: true,
+        referral: true,
+      },
     });
 
     if (!user) {
       throw new NotFoundException(`用户 ${accountSequence} 不存在`);
     }
 
-    // 返回基础结构，数据需要从 identity-service 同步
-    return {
-      currentUser: {
-        accountSequence: user.accountSequence,
-        nickname: user.realName || null,
-        avatar: null,
-        personalAdoptions: 0,
-        teamAdoptions: 0,
-        directReferralCount: user.contributionAccount?.directReferralCount || 0,
-      },
-      ancestors: [],
-      directReferrals: [],
-      note: '推荐关系数据需要从 identity-service 同步',
+    // 获取当前用户的认种统计
+    const currentUserAdoptions = await this.getUserAdoptionStats(accountSequence);
+
+    // 构建当前用户节点
+    const currentUser = {
+      accountSequence: user.accountSequence,
+      nickname: user.nickname || user.realName || null,
+      avatar: null,
+      personalAdoptions: currentUserAdoptions.personal,
+      teamAdoptions: currentUserAdoptions.team,
+      directReferralCount: 0,
     };
+
+    // 获取直推下级数量
+    const directReferralCount = await this.prisma.syncedReferral.count({
+      where: { referrerAccountSequence: accountSequence },
+    });
+    currentUser.directReferralCount = directReferralCount;
+
+    // 获取向上的引荐人链 (ancestors)
+    let ancestors: any[] = [];
+    if (direction === 'up' || direction === 'both') {
+      ancestors = await this.getAncestors(accountSequence, depth);
+    }
+
+    // 获取直推下级 (directReferrals)
+    let directReferrals: any[] = [];
+    if (direction === 'down' || direction === 'both') {
+      directReferrals = await this.getDirectReferrals(accountSequence);
+    }
+
+    return {
+      currentUser,
+      ancestors,
+      directReferrals,
+    };
+  }
+
+  /**
+   * 获取用户认种统计
+   */
+  private async getUserAdoptionStats(
+    accountSequence: string,
+  ): Promise<{ personal: number; team: number }> {
+    // 个人认种
+    const personalStats = await this.prisma.syncedAdoption.aggregate({
+      where: { accountSequence },
+      _sum: { treeCount: true },
+    });
+
+    // 获取用户的 originalUserId
+    const referral = await this.prisma.syncedReferral.findUnique({
+      where: { accountSequence },
+      select: { originalUserId: true },
+    });
+
+    let teamCount = 0;
+    if (referral?.originalUserId) {
+      // 团队认种 = 所有下级的认种总和
+      const teamMembers = await this.prisma.syncedReferral.findMany({
+        where: {
+          ancestorPath: { contains: referral.originalUserId.toString() },
+        },
+        select: { accountSequence: true },
+      });
+
+      if (teamMembers.length > 0) {
+        const teamStats = await this.prisma.syncedAdoption.aggregate({
+          where: {
+            accountSequence: { in: teamMembers.map((m) => m.accountSequence) },
+          },
+          _sum: { treeCount: true },
+        });
+        teamCount = teamStats._sum.treeCount || 0;
+      }
+    }
+
+    return {
+      personal: personalStats._sum.treeCount || 0,
+      team: teamCount,
+    };
+  }
+
+  /**
+   * 获取向上的引荐人链
+   */
+  private async getAncestors(
+    accountSequence: string,
+    maxDepth: number = 10,
+  ): Promise<any[]> {
+    const ancestors: any[] = [];
+
+    // 获取当前用户的推荐关系
+    const referral = await this.prisma.syncedReferral.findUnique({
+      where: { accountSequence },
+      select: { referrerAccountSequence: true, ancestorPath: true },
+    });
+
+    if (!referral?.referrerAccountSequence) {
+      return ancestors;
+    }
+
+    // 通过 ancestorPath 解析祖先链
+    // ancestorPath 格式类似: "123,456,789" 其中 123 是直接上级的 originalUserId
+    if (referral.ancestorPath) {
+      const ancestorUserIds = referral.ancestorPath
+        .split(',')
+        .filter((id) => id.trim())
+        .slice(0, maxDepth);
+
+      // 获取所有祖先的 referral 记录以获取 accountSequence
+      const ancestorReferrals = await this.prisma.syncedReferral.findMany({
+        where: {
+          originalUserId: { in: ancestorUserIds.map((id) => BigInt(id)) },
+        },
+        select: { accountSequence: true, originalUserId: true },
+      });
+
+      const userIdToSeq = new Map(
+        ancestorReferrals.map((r) => [r.originalUserId.toString(), r.accountSequence]),
+      );
+
+      // 按顺序获取每个祖先的详细信息
+      for (const userId of ancestorUserIds) {
+        const seq = userIdToSeq.get(userId);
+        if (!seq) continue;
+
+        const user = await this.prisma.syncedUser.findUnique({
+          where: { accountSequence: seq },
+          select: { accountSequence: true, nickname: true, realName: true },
+        });
+
+        if (user) {
+          const adoptionStats = await this.getUserAdoptionStats(seq);
+          const directCount = await this.prisma.syncedReferral.count({
+            where: { referrerAccountSequence: seq },
+          });
+
+          ancestors.push({
+            accountSequence: user.accountSequence,
+            nickname: user.nickname || user.realName || null,
+            avatar: null,
+            personalAdoptions: adoptionStats.personal,
+            teamAdoptions: adoptionStats.team,
+            directReferralCount: directCount,
+          });
+        }
+      }
+    }
+
+    // 反转使得最近的祖先在最后（靠近当前用户）
+    return ancestors.reverse();
+  }
+
+  /**
+   * 获取直推下级
+   */
+  private async getDirectReferrals(accountSequence: string): Promise<any[]> {
+    // 获取所有直推下级
+    const directReferrals = await this.prisma.syncedReferral.findMany({
+      where: { referrerAccountSequence: accountSequence },
+      select: { accountSequence: true },
+    });
+
+    const results: any[] = [];
+
+    for (const ref of directReferrals) {
+      const user = await this.prisma.syncedUser.findUnique({
+        where: { accountSequence: ref.accountSequence },
+        select: { accountSequence: true, nickname: true, realName: true },
+      });
+
+      if (user) {
+        const adoptionStats = await this.getUserAdoptionStats(ref.accountSequence);
+        const directCount = await this.prisma.syncedReferral.count({
+          where: { referrerAccountSequence: ref.accountSequence },
+        });
+
+        results.push({
+          accountSequence: user.accountSequence,
+          nickname: user.nickname || user.realName || null,
+          avatar: null,
+          personalAdoptions: adoptionStats.personal,
+          teamAdoptions: adoptionStats.team,
+          directReferralCount: directCount,
+        });
+      }
+    }
+
+    return results;
   }
 
   /**