diff --git a/apps/backend/src/services/worker-platform/worker-platform-service.test.ts b/apps/backend/src/services/worker-platform/worker-platform-service.test.ts
index 0fe5a92a..d8e84d86 100644
--- a/apps/backend/src/services/worker-platform/worker-platform-service.test.ts
+++ b/apps/backend/src/services/worker-platform/worker-platform-service.test.ts
@@ -14,6 +14,7 @@ import {
   normalizeWithdrawChannel,
   normalizeRequirementFields,
   mapWorkOrderForWorker,
+  maskWorkerLeaderboardDisplayName,
   resolveCollectSubmitTargetWorkOrder,
   resolveMatchingProductRuleDecision,
   resolveWorkerPermissions,
@@ -130,6 +131,12 @@ test('接单密码必须包含大小写字母、数字和标点符号', () => {
   assert.throws(() => validateWorkerPassword('Aa123456'), { errorCode: 'worker_password_invalid' })
 })
 
+test('排行榜打手名称仅展示首字符', () => {
+  assert.equal(maskWorkerLeaderboardDisplayName('张三'), '张****')
+  assert.equal(maskWorkerLeaderboardDisplayName('Alice'), 'A****')
+  assert.equal(maskWorkerLeaderboardDisplayName(''), '****')
+})
+
 test('快手具体 SKU 精确规则优先于大标题包含规则', () => {
   const decision = resolveMatchingProductRuleDecision(buildOrderRow(), buildOrderItemRow(), [
     buildProductRule(),
diff --git a/apps/backend/src/services/worker-platform/worker-service.ts b/apps/backend/src/services/worker-platform/worker-service.ts
index d421d176..9f72c338 100644
--- a/apps/backend/src/services/worker-platform/worker-service.ts
+++ b/apps/backend/src/services/worker-platform/worker-service.ts
@@ -1158,7 +1158,12 @@ export async function getWorkerHallLeaderboard(session: WorkerSession) {
   })
   const current = entries.find((entry) => entry.workerId === session.workerId)
   return {
-    items: entries.filter((entry) => entry.rank <= 10),
+    items: entries
+      .filter((entry) => entry.rank <= 10)
+      .map((entry) => ({
+        ...entry,
+        displayName: maskWorkerLeaderboardDisplayName(entry.displayName),
+      })),
     current: {
       rank: current?.rank || null,
       acceptedOrderCount: current?.acceptedOrderCount || 0,
@@ -1166,6 +1171,11 @@ export async function getWorkerHallLeaderboard(session: WorkerSession) {
   }
 }
 
+export function maskWorkerLeaderboardDisplayName(value: unknown): string {
+  const firstCharacter = Array.from(String(value || '').trim())[0]
+  return firstCharacter ? `${firstCharacter}****` : '****'
+}
+
 export async function grabWorkerHallOrder(workOrderId: number | string, session: WorkerSession) {
   requireActiveWorkerSession(session)
   const worker = await getRequiredWorker(session.workerId)