diff --git a/backend/services/identity-service/prisma/seed.ts b/backend/services/identity-service/prisma/seed.ts
index 79819311..517ec033 100644
--- a/backend/services/identity-service/prisma/seed.ts
+++ b/backend/services/identity-service/prisma/seed.ts
@@ -49,6 +49,13 @@ const SYSTEM_ACCOUNTS = [
     referralCode: 'POOL0004',
     status: 'SYSTEM',
   },
+  {
+    userId: BigInt(5),
+    accountSequence: 'S0000000005',  // GENESIS种子用户
+    nickname: 'GENESIS种子用户',
+    referralCode: 'GENESIS',
+    status: 'SYSTEM',
+  },
 ];
 
 async function main() {
@@ -114,7 +121,7 @@ async function main() {
 
   console.log('Database seeded successfully!');
   console.log(`- Initialized account sequence generator for date ${dateKey}`);
-  console.log(`- Created ${SYSTEM_ACCOUNTS.length} system accounts (S0000000001-S0000000004)`);
+  console.log(`- Created ${SYSTEM_ACCOUNTS.length} system accounts (S0000000001-S0000000005)`);
   console.log(`- Created ${ADMIN_ACCOUNTS.length} admin accounts`);
 }
 
diff --git a/backend/services/referral-service/package.json b/backend/services/referral-service/package.json
index fd769f33..9f3a10f2 100644
--- a/backend/services/referral-service/package.json
+++ b/backend/services/referral-service/package.json
@@ -26,7 +26,8 @@
     "prisma:generate": "prisma generate",
     "prisma:migrate": "prisma migrate dev",
     "prisma:migrate:prod": "prisma migrate deploy",
-    "prisma:studio": "prisma studio"
+    "prisma:studio": "prisma studio",
+    "prisma:seed": "ts-node prisma/seed.ts"
   },
   "dependencies": {
     "@nestjs/axios": "^3.0.0",
diff --git a/backend/services/referral-service/prisma/seed.ts b/backend/services/referral-service/prisma/seed.ts
new file mode 100644
index 00000000..af8387e5
--- /dev/null
+++ b/backend/services/referral-service/prisma/seed.ts
@@ -0,0 +1,67 @@
+import { PrismaClient } from '@prisma/client';
+
+const prisma = new PrismaClient();
+
+// ============================================
+// GENESIS 系统种子用户
+// 用于为未来的注册用户提供初始推荐码
+// ============================================
+const GENESIS_USER = {
+  userId: BigInt(5),
+  accountSequence: 'S0000000005',
+  myReferralCode: 'GENESIS',
+  usedReferralCode: null,  // 根节点无推荐人
+  referrerId: null,        // 根节点
+  rootUserId: null,
+  ancestorPath: [],        // 空数组 = 根节点
+  depth: 0,                // 深度 0 = 根节点
+  directReferralCount: 0,
+  activeDirectCount: 0,
+};
+
+async function main() {
+  console.log('Seeding referral-service database...');
+
+  // 创建 GENESIS 推荐关系
+  await prisma.referralRelationship.upsert({
+    where: { userId: GENESIS_USER.userId },
+    update: GENESIS_USER,
+    create: GENESIS_USER,
+  });
+  console.log('  - Created GENESIS referral relationship (userId=5, code=GENESIS)');
+
+  // 创建 GENESIS 的团队统计
+  await prisma.teamStatistics.upsert({
+    where: { userId: GENESIS_USER.userId },
+    update: {},
+    create: {
+      userId: GENESIS_USER.userId,
+      directReferralCount: 0,
+      totalTeamCount: 0,
+      selfPlantingCount: 0,
+      selfPlantingAmount: 0,
+      directPlantingCount: 0,
+      totalTeamPlantingCount: 0,
+      totalTeamPlantingAmount: 0,
+      maxSingleTeamPlantingCount: 0,
+      effectivePlantingCountForRanking: 0,
+      ownProvinceTeamCount: 0,
+      ownCityTeamCount: 0,
+      provinceTeamPercentage: 0,
+      cityTeamPercentage: 0,
+    },
+  });
+  console.log('  - Created GENESIS team statistics');
+
+  console.log('Database seeded successfully!');
+  console.log('- Created 1 GENESIS seed user for initial referrals');
+}
+
+main()
+  .catch((e) => {
+    console.error(e);
+    process.exit(1);
+  })
+  .finally(async () => {
+    await prisma.$disconnect();
+  });