diff --git a/backend/src/routes/social.routes.ts b/backend/src/routes/social.routes.ts
index a3719eb..dc70436 100644
--- a/backend/src/routes/social.routes.ts
+++ b/backend/src/routes/social.routes.ts
@@ -1275,17 +1275,17 @@ router.get('/monthly-changes', async (req: AuthRequest, res: Response, next: Nex
     const month = (req.query.month as string) || new Date().toISOString().slice(0, 7)
     const orgId = req.user!.orgId
 
-    // 增员：startMonth == month
+    // 增员：startMonth == month（排除劳务/实习协议员工）
     const additions = await prisma.employeeSocialInsRecord.findMany({
-      where: { orgId, startMonth: month },
-      include: { employee: { select: { name: true, department: true, idCardNumber: true } } },
+      where: { orgId, startMonth: month, employee: { contracts: { some: { contractType: { in: ['FIXED', 'UNFIXED'] } } } } },
+      include: { employee: { select: { name: true, department: true, idCardNumber: true, contracts: { orderBy: { createdAt: 'desc' }, take: 1, select: { contractType: true } } } } },
       orderBy: { createdAt: 'asc' },
     })
 
     // 减员：endMonth == month 且 changeType 为 TERMINATION 或 CITY_CHANGE
     const reductions = await prisma.employeeSocialInsRecord.findMany({
-      where: { orgId, endMonth: month, changeType: { in: ['TERMINATION', 'CITY_CHANGE'] } },
-      include: { employee: { select: { name: true, department: true, idCardNumber: true } } },
+      where: { orgId, endMonth: month, changeType: { in: ['TERMINATION', 'CITY_CHANGE'] }, employee: { contracts: { some: { contractType: { in: ['FIXED', 'UNFIXED'] } } } } },
+      include: { employee: { select: { name: true, department: true, idCardNumber: true, contracts: { orderBy: { createdAt: 'desc' }, take: 1, select: { contractType: true } } } } },
       orderBy: { createdAt: 'asc' },
     })
 
@@ -1350,14 +1350,14 @@ router.get('/housing/monthly-changes', async (req: AuthRequest, res: Response, n
     const orgId = req.user!.orgId
 
     const additions = await prisma.employeeHousingFundRecord.findMany({
-      where: { orgId, startMonth: month },
-      include: { employee: { select: { name: true, department: true, idCardNumber: true } } },
+      where: { orgId, startMonth: month, employee: { contracts: { some: { contractType: { in: ['FIXED', 'UNFIXED'] } } } } },
+      include: { employee: { select: { name: true, department: true, idCardNumber: true, contracts: { orderBy: { createdAt: 'desc' }, take: 1, select: { contractType: true } } } } },
       orderBy: { createdAt: 'asc' },
     })
 
     const reductions = await prisma.employeeHousingFundRecord.findMany({
-      where: { orgId, endMonth: month, changeType: { in: ['TERMINATION', 'CITY_CHANGE'] } },
-      include: { employee: { select: { name: true, department: true, idCardNumber: true } } },
+      where: { orgId, endMonth: month, changeType: { in: ['TERMINATION', 'CITY_CHANGE'] }, employee: { contracts: { some: { contractType: { in: ['FIXED', 'UNFIXED'] } } } } },
+      include: { employee: { select: { name: true, department: true, idCardNumber: true, contracts: { orderBy: { createdAt: 'desc' }, take: 1, select: { contractType: true } } } } },
       orderBy: { createdAt: 'asc' },
     })
 
@@ -1421,8 +1421,9 @@ router.get('/active-declaration', async (req: AuthRequest, res: Response, next:
         orgId,
         startMonth: { lt: month },
         OR: [{ endMonth: null }, { endMonth: { gt: month } }],
+        employee: { contracts: { some: { contractType: { in: ['FIXED', 'UNFIXED'] } } } },
       },
-      include: { employee: { select: { name: true, department: true, idCardNumber: true, hireDate: true } } },
+      include: { employee: { select: { name: true, department: true, idCardNumber: true, hireDate: true, contracts: { orderBy: { createdAt: 'desc' }, take: 1, select: { contractType: true } } } } },
       orderBy: { createdAt: 'asc' },
     })
 
@@ -1483,8 +1484,9 @@ router.get('/housing/active-declaration', async (req: AuthRequest, res: Response
         orgId,
         startMonth: { lt: month },
         OR: [{ endMonth: null }, { endMonth: { gt: month } }],
+        employee: { contracts: { some: { contractType: { in: ['FIXED', 'UNFIXED'] } } } },
       },
-      include: { employee: { select: { name: true, department: true, idCardNumber: true, hireDate: true } } },
+      include: { employee: { select: { name: true, department: true, idCardNumber: true, hireDate: true, contracts: { orderBy: { createdAt: 'desc' }, take: 1, select: { contractType: true } } } } },
       orderBy: { createdAt: 'asc' },
     })