diff --git a/backend/src/routes/import.routes.ts b/backend/src/routes/import.routes.ts
index 757d497..64d7375 100644
--- a/backend/src/routes/import.routes.ts
+++ b/backend/src/routes/import.routes.ts
@@ -260,6 +260,7 @@ router.post('/excel', authMiddleware, requireAdmin, upload.single('file'), async
           if (salary === '0') { result.skipped++; result.errors.push(`员工第${i + 2}行：月工资为空`); result.details.push({ sheet: '员工信息', row: i + 2, name, status: 'skipped', message: '月工资为空' }); continue }
 
           let idCard = val(getField(r, '身份证号'))
+          if (!idCard) { result.skipped++; result.errors.push(`员工第${i + 2}行：身份证号为空，跳过`); result.details.push({ sheet: '员工信息', row: i + 2, name, status: 'skipped', message: '身份证号为空' }); continue }
           if (idCard) {
             const idCheck = validateIdCard(idCard)
             if (!idCheck.valid) { result.skipped++; result.errors.push(`员工第${i + 2}行：${idCheck.error}`); result.details.push({ sheet: '员工信息', row: i + 2, name, status: 'skipped', message: idCheck.error }); continue }
diff --git a/backend/src/schemas/contract.schema.ts b/backend/src/schemas/contract.schema.ts
index d0a57f2..3bc172f 100644
--- a/backend/src/schemas/contract.schema.ts
+++ b/backend/src/schemas/contract.schema.ts
@@ -5,6 +5,7 @@ export const createEmployeeSchema = z.object({
   department: z.string().min(1, '部门不能为空').max(50, '部门最多50个字'),
   hireDate: z.string().datetime(),
   monthlySalary: z.string().min(1, '月薪不能为空'),
+  idCardNumber: z.string().min(18, '身份证号不能为空且必须18位').max(18, '身份证号必须18位'),
   gender: z.enum(['男', '女']).optional(),
   femaleWorkerType: z.enum(['CADRE', 'WORKER']).optional(),
   phone: z.string().regex(/^1[3-9]\d{9}$/).optional(),
@@ -30,6 +31,7 @@ export const updateEmployeeSchema = z.object({
   department: z.string().min(1).max(50).optional(),
   hireDate: z.string().datetime().optional(),
   monthlySalary: z.string().min(1).optional(),
+  idCardNumber: z.string().min(18).max(18).optional(),
   gender: z.enum(['男', '女']).optional(),
   femaleWorkerType: z.enum(['CADRE', 'WORKER']).optional(),
   phone: z.string().regex(/^1[3-9]\d{9}$/).optional(),
diff --git a/backend/src/services/contract.service.ts b/backend/src/services/contract.service.ts
index 327ee63..e0352c9 100644
--- a/backend/src/services/contract.service.ts
+++ b/backend/src/services/contract.service.ts
@@ -1,6 +1,7 @@
 import prisma from '../lib/prisma'
 import { encrypt, decrypt, sha256 } from '../lib/crypto'
 import { runRiskDetection } from './risk.service'
+import { extractBirthDateFromIdCard, extractGenderFromIdCard } from './retirement.service'
 
 function daysBetween(a: Date, b: Date): number {
   return Math.floor((a.getTime() - b.getTime()) / (1000 * 60 * 60 * 24))
@@ -525,6 +526,15 @@ export async function updateEmployee(orgId: string, id: string, data: any) {
   if (data.gender !== undefined) updateData.gender = data.gender
   if (data.femaleWorkerType !== undefined) updateData.femaleWorkerType = data.femaleWorkerType
   if (data.phone !== undefined) updateData.phone = data.phone
+  if (data.idCardNumber !== undefined) {
+    updateData.idCardNumber = encrypt(data.idCardNumber)
+    updateData.idCardHash = sha256(data.idCardNumber)
+    updateData.birthDate = extractBirthDateFromIdCard(data.idCardNumber)
+    if (!updateData.gender) {
+      const gender = extractGenderFromIdCard(data.idCardNumber)
+      if (gender) updateData.gender = gender
+    }
+  }
   if (data.bankName !== undefined) updateData.bankName = data.bankName
   if (data.bankAccount !== undefined) updateData.bankAccount = encrypt(data.bankAccount)
   if (data.emergencyContact !== undefined) updateData.emergencyContact = data.emergencyContact
diff --git a/backend/src/services/risk.service.ts b/backend/src/services/risk.service.ts
index 808a5c0..a07db89 100644
--- a/backend/src/services/risk.service.ts
+++ b/backend/src/services/risk.service.ts
@@ -1674,8 +1674,8 @@ export async function getAnnualValueReport(orgId: string, year: number) {
   }
 
   for (const r of employeeRiskDetails) {
-    // 按身份证号分组，无身份证号时回退到 employeeId
-    const personKey = r.employee?.idCardHash || r.employeeId || '_unknown'
+    // 去重优先级：身份证号 > 姓名回退到姓名，避免同一人多条 Employee 记录被重复计算
+    const personKey = r.employee?.idCardHash || r.employee?.name || r.employeeId || '_unknown'
     if (!personBreakdown[personKey]) {
       personBreakdown[personKey] = {
         personKey,