diff --git a/backend/tests/test_contracts_api.py b/backend/tests/test_contracts_api.py
index 9c2a762e..2fb84d6d 100644
--- a/backend/tests/test_contracts_api.py
+++ b/backend/tests/test_contracts_api.py
@@ -1,3 +1,4 @@
+import json
 import unittest
 from datetime import datetime, timedelta, timezone
 
@@ -308,6 +309,29 @@ class StubContractGenerationService:
     def preview_contract(self, current_user, template_id, variable_values):
         if template_id == "tpl-missing":
             raise HTTPException(status_code=404, detail="template not found")
+        if "甲方名称" in variable_values:
+            return {
+                "preview_content": f"甲方：{variable_values.get('甲方名称', '')}\n乙方：{variable_values.get('乙方名称', '')}",
+                "template_name": "Property Service Template",
+                "variable_summary": [
+                    {
+                        "name": "甲方名称",
+                        "label": "甲方名称",
+                        "required": True,
+                        "provided": "甲方名称" in variable_values,
+                        "value_preview": variable_values.get("甲方名称", ""),
+                        "is_empty": not bool(variable_values.get("甲方名称", "").strip()),
+                    },
+                    {
+                        "name": "乙方名称",
+                        "label": "乙方名称",
+                        "required": True,
+                        "provided": "乙方名称" in variable_values,
+                        "value_preview": variable_values.get("乙方名称", ""),
+                        "is_empty": not bool(variable_values.get("乙方名称", "").strip()),
+                    },
+                ],
+            }
         return {
             "preview_content": f"Contract with {variable_values.get('supplier_name', '')}",
             "template_name": "Procurement Template",
@@ -441,13 +465,23 @@ class StubContractGenerationService:
     ):
         if template_id == "tpl-missing":
             raise HTTPException(status_code=404, detail="template not found")
+        if "甲方名称" in variable_values:
+            content = f"甲方：{variable_values.get('甲方名称', '')}\n乙方：{variable_values.get('乙方名称', '')}"
+            contract_type = "property_service"
+            document_type_code = document_type_code or "property_service"
+            template_name = "Property Service Template"
+        else:
+            content = f"Contract with {variable_values.get('supplier_name', '')}"
+            contract_type = "procurement"
+            document_type_code = document_type_code or "procurement_goods"
+            template_name = "Procurement Template"
         return {
             "id": "contract-123",
             "template_id": template_id,
-            "template_name": "Procurement Template",
-            "contract_type": "procurement",
-            "document_type_code": document_type_code or "procurement_goods",
-            "generated_content": f"Contract with {variable_values.get('supplier_name', '')}",
+            "template_name": template_name,
+            "contract_type": contract_type,
+            "document_type_code": document_type_code,
+            "generated_content": content,
             "generated_html": "<article>Contract</article>",
             "variable_values": variable_values,
             "elements_snapshot": elements_snapshot,
@@ -740,6 +774,25 @@ class ContractsApiTestCase(unittest.TestCase):
         self.assertEqual([call[0] for call in self.tenant_service.calls], ["generation", "review"])
         self.assertEqual(self.audit_log_service.operations[0]["action"], "contract_generation")
 
+    def test_user_can_generate_contract_with_chinese_variable_keys(self):
+        self._login()
+        payload = {
+            "甲方名称": "甲方物业公司",
+            "乙方名称": "乙方服务公司",
+        }
+        response = self.client.post(
+            "/api/v1/contracts/generate",
+            data={
+                "template_id": "tpl-123",
+                "variable_values_json": json.dumps(payload, ensure_ascii=False),
+                "export_format": "docx",
+            },
+        )
+        self.assertEqual(response.status_code, 200)
+        body = response.json()
+        self.assertEqual(body["data"]["variable_values"]["甲方名称"], "甲方物业公司")
+        self.assertEqual(body["data"]["variable_values"]["乙方名称"], "乙方服务公司")
+
     def test_user_can_generate_contract_from_elements_with_auto_template(self):
         self._login()
         response = self.client.post(
@@ -779,6 +832,22 @@ class ContractsApiTestCase(unittest.TestCase):
         self.assertEqual(preview.status_code, 200)
         self.assertIn("Supplier A", preview.json()["data"]["preview_content"])
 
+        chinese_preview = self.client.post(
+            "/api/v1/contracts/preview",
+            data={
+                "template_id": "tpl-123",
+                "variable_values_json": json.dumps(
+                    {"甲方名称": "甲方物业公司", "乙方名称": "乙方服务公司"},
+                    ensure_ascii=False,
+                ),
+            },
+        )
+        self.assertEqual(chinese_preview.status_code, 200)
+        self.assertEqual(
+            chinese_preview.json()["data"]["variable_summary"][0]["name"],
+            "甲方名称",
+        )
+
         download = self.client.get("/api/v1/contracts/contract-123/download")
         self.assertEqual(download.status_code, 200)
         self.assertEqual(download.content, b"pdf-bytes")
@@ -1168,6 +1237,55 @@ class ContractGenerationServiceTestCase(unittest.TestCase):
             "contract_generation.template_render.v1",
         )
 
+    def test_property_service_chinese_variable_template_supports_preview_and_generate(self):
+        now = datetime.now(timezone.utc)
+        template = self.ContractTemplate(
+            id="tpl-property-cn",
+            tenant_id="tenant-demo-001",
+            name="物业服务合同模板",
+            contract_type="property_service",
+            document_type_code="property_service",
+            description="Chinese variable template",
+            content="甲方：{{甲方名称}}\n乙方：{{乙方名称}}\n项目：{{项目/物业名称}}",
+            variables_json=[
+                {"name": "甲方名称", "label": "甲方名称", "required": True},
+                {"name": "乙方名称", "label": "乙方名称", "required": True},
+                {"name": "项目/物业名称", "label": "项目/物业名称", "required": True},
+            ],
+            enabled=True,
+            created_by="seed",
+            updated_by="seed",
+            created_at=now,
+            updated_at=now,
+        )
+        self.db.add(template)
+        self.db.commit()
+
+        variable_values = {
+            "甲方名称": "甲方物业公司",
+            "乙方名称": "乙方服务公司",
+            "项目/物业名称": "测试小区",
+        }
+
+        preview = self.service.preview_contract(
+            current_user=self.current_user,
+            template_id="tpl-property-cn",
+            variable_values=variable_values,
+        )
+        self.assertIn("甲方物业公司", preview["preview_content"])
+        self.assertEqual(preview["variable_summary"][0]["name"], "甲方名称")
+        self.assertTrue(preview["variable_summary"][0]["provided"])
+
+        result = self.service.generate_contract(
+            current_user=self.current_user,
+            template_id="tpl-property-cn",
+            variable_values=variable_values,
+        )
+        self.assertEqual(result["template_id"], "tpl-property-cn")
+        self.assertEqual(result["document_type_code"], "property_service")
+        self.assertEqual(result["variable_values"]["甲方名称"], "甲方物业公司")
+        self.assertIn("测试小区", result["generated_content"])
+
     def test_generate_contract_from_elements_auto_selects_template_and_returns_law_doc_004_payload(self):
         self._seed_law_doc_004_data()
         result = self.service.generate_contract_from_elements(
diff --git a/scripts/verify-chinese-contract-template-utf8.ps1 b/scripts/verify-chinese-contract-template-utf8.ps1
new file mode 100644
index 00000000..9acb183d
--- /dev/null
+++ b/scripts/verify-chinese-contract-template-utf8.ps1
@@ -0,0 +1,15 @@
+param(
+  [string]$ApiBaseUrl = "http://192.168.3.90:8001/api/v1",
+  [string]$Account = "cyuqei@gmail.com",
+  [string]$Password = "816301",
+  [string]$TemplateId = "tpl-006aea61de80"
+)
+
+$ErrorActionPreference = "Stop"
+
+$scriptPath = Join-Path $PSScriptRoot "verify_chinese_contract_template_utf8.py"
+if (-not (Test-Path $scriptPath)) {
+  throw "Python verifier not found at $scriptPath"
+}
+
+python $scriptPath $ApiBaseUrl $Account $Password $TemplateId
diff --git a/scripts/verify_chinese_contract_template_utf8.py b/scripts/verify_chinese_contract_template_utf8.py
new file mode 100644
index 00000000..ff04e1a7
--- /dev/null
+++ b/scripts/verify_chinese_contract_template_utf8.py
@@ -0,0 +1,79 @@
+import json
+import sys
+
+import requests
+
+
+def main() -> int:
+    api_base = sys.argv[1].rstrip("/")
+    account = sys.argv[2]
+    password = sys.argv[3]
+    template_id = sys.argv[4]
+
+    payload = {
+        "甲方名称": "甲方物业公司",
+        "乙方名称": "乙方服务公司",
+        "项目/物业名称": "测试小区",
+        "物业坐落": "北京市朝阳区测试路1号",
+        "物业类型": "住宅",
+        "服务区域/范围": "全区物业服务",
+        "服务内容和标准": "保洁安保维修",
+        "服务期限": "2026年1月1日至2026年12月31日",
+        "物业服务费标准": "每月10万元",
+        "费用计收方式": "按月支付",
+        "付款周期/缴费期限": "每月5日前支付",
+        "共用部位/共用设施设备维护": "乙方负责日常维护",
+        "维修资金/专项维修安排": "按维修基金制度执行",
+        "公共秩序和安全协助事项": "安保巡逻与秩序维护",
+        "环境卫生与绿化维护": "保洁与绿化养护",
+        "业主/使用人义务": "遵守物业管理制度",
+        "业主委员会/授权依据": "业委会授权决议",
+        "交接验收与资料移交": "完工交接清单",
+        "违约责任": "违约方承担违约责任",
+        "争议解决方式": "北京仲裁委员会仲裁",
+        "签署日期": "2026-05-27",
+    }
+
+    login = requests.post(
+        f"{api_base}/auth/login",
+        json={"account": account, "password": password},
+        timeout=30,
+    )
+    login.raise_for_status()
+    token = login.json()["data"]["access_token"]
+    headers = {"Authorization": f"Bearer {token}"}
+
+    form = {
+        "template_id": template_id,
+        "variable_values_json": json.dumps(payload, ensure_ascii=False),
+        "export_format": "txt",
+    }
+
+    preview = requests.post(
+        f"{api_base}/contracts/preview",
+        headers={**headers, "Content-Type": "application/x-www-form-urlencoded; charset=UTF-8"},
+        data=form,
+        timeout=60,
+    )
+    preview.raise_for_status()
+
+    generate = requests.post(
+        f"{api_base}/contracts/generate",
+        headers={**headers, "Content-Type": "application/x-www-form-urlencoded; charset=UTF-8"},
+        data=form,
+        timeout=180,
+    )
+    generate.raise_for_status()
+
+    result = {
+        "preview_status": preview.status_code,
+        "preview_body": preview.json(),
+        "generate_status": generate.status_code,
+        "generate_body": generate.json(),
+    }
+    print(json.dumps(result, ensure_ascii=False, indent=2))
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())