diff --git a/lsfx-mock-server/models/__init__.py b/lsfx-mock-server/models/__init__.py
new file mode 100644
index 0000000..f3d9f4b
--- /dev/null
+++ b/lsfx-mock-server/models/__init__.py
@@ -0,0 +1 @@
+# Models package
diff --git a/lsfx-mock-server/models/request.py b/lsfx-mock-server/models/request.py
new file mode 100644
index 0000000..3b0be3d
--- /dev/null
+++ b/lsfx-mock-server/models/request.py
@@ -0,0 +1,50 @@
+from pydantic import BaseModel, Field
+from typing import Optional, List
+
+
+class GetTokenRequest(BaseModel):
+    """获取Token请求模型"""
+    projectNo: str = Field(..., description="项目编号，格式：902000_当前时间戳")
+    entityName: str = Field(..., description="项目名称")
+    userId: str = Field(..., description="操作人员编号，固定值")
+    userName: str = Field(..., description="操作人员姓名，固定值")
+    orgCode: str = Field(..., description="行社机构号，固定值")
+    entityId: Optional[str] = Field(None, description="企业统信码或个人身份证号")
+    xdRelatedPersons: Optional[str] = Field(None, description="信贷关联人信息")
+    jzDataDateId: Optional[str] = Field("0", description="拉取指定日期推送过来的金综链流水")
+    innerBSStartDateId: Optional[str] = Field("0", description="拉取行内流水开始日期")
+    innerBSEndDateId: Optional[str] = Field("0", description="拉取行内流水结束日期")
+    analysisType: Optional[int] = Field(-1, description="分析类型")
+    departmentCode: Optional[str] = Field(None, description="客户经理所属营业部/分理处的机构编码")
+
+
+class FetchInnerFlowRequest(BaseModel):
+    """拉取行内流水请求模型"""
+    groupId: int = Field(..., description="项目id")
+    customerNo: str = Field(..., description="客户身份证号")
+    dataChannelCode: str = Field(..., description="校验码")
+    requestDateId: int = Field(..., description="发起请求的时间")
+    dataStartDateId: int = Field(..., description="拉取开始日期")
+    dataEndDateId: int = Field(..., description="拉取结束日期")
+    uploadUserId: int = Field(..., description="柜员号")
+
+
+class CheckParseStatusRequest(BaseModel):
+    """检查文件解析状态请求模型"""
+    groupId: int = Field(..., description="项目id")
+    inprogressList: str = Field(..., description="文件id列表，逗号分隔")
+
+
+class GetBankStatementRequest(BaseModel):
+    """获取银行流水请求模型"""
+    groupId: int = Field(..., description="项目id")
+    logId: int = Field(..., description="文件id")
+    pageNow: int = Field(..., description="当前页码")
+    pageSize: int = Field(..., description="查询条数")
+
+
+class DeleteFilesRequest(BaseModel):
+    """删除文件请求模型"""
+    groupId: int = Field(..., description="项目id")
+    logIds: List[int] = Field(..., description="文件id数组")
+    userId: int = Field(..., description="用户柜员号")
diff --git a/lsfx-mock-server/models/response.py b/lsfx-mock-server/models/response.py
new file mode 100644
index 0000000..9efe0d2
--- /dev/null
+++ b/lsfx-mock-server/models/response.py
@@ -0,0 +1,187 @@
+from pydantic import BaseModel, Field
+from typing import Optional, List, Dict, Any
+
+
+# ==================== Token相关模型 ====================
+
+class TokenData(BaseModel):
+    """Token数据"""
+    token: str = Field(..., description="token")
+    projectId: int = Field(..., description="见知项目Id")
+    projectNo: str = Field(..., description="项目编号")
+    entityName: str = Field(..., description="项目名称")
+    analysisType: int = Field(0, description="分析类型")
+
+
+class GetTokenResponse(BaseModel):
+    """获取Token响应"""
+    code: str = Field("200", description="返回码")
+    data: Optional[TokenData] = Field(None, description="返回数据")
+    message: str = Field("create.token.success", description="返回消息")
+    status: str = Field("200", description="状态")
+    successResponse: bool = Field(True, description="是否成功响应")
+
+
+# ==================== 文件上传相关模型 ====================
+
+class AccountInfo(BaseModel):
+    """账户信息"""
+    bank: str = Field(..., description="银行")
+    accountName: str = Field(..., description="账户名称")
+    accountNo: str = Field(..., description="账号")
+    currency: str = Field(..., description="币种")
+
+
+class UploadLogItem(BaseModel):
+    """上传日志项"""
+    accountNoList: List[str] = Field(default=[], description="账号列表")
+    bankName: str = Field(..., description="银行名称")
+    dataTypeInfo: List[str] = Field(default=[], description="数据类型信息")
+    downloadFileName: str = Field(..., description="下载文件名")
+    enterpriseNameList: List[str] = Field(default=[], description="企业名称列表")
+    filePackageId: str = Field(..., description="文件包ID")
+    fileSize: int = Field(..., description="文件大小")
+    fileUploadBy: int = Field(..., description="上传者ID")
+    fileUploadByUserName: str = Field(..., description="上传者用户名")
+    fileUploadTime: str = Field(..., description="上传时间")
+    leId: int = Field(..., description="企业ID")
+    logId: int = Field(..., description="日志ID")
+    logMeta: str = Field(..., description="日志元数据")
+    logType: str = Field(..., description="日志类型")
+    loginLeId: int = Field(..., description="登录企业ID")
+    realBankName: str = Field(..., description="真实银行名称")
+    rows: int = Field(0, description="行数")
+    source: str = Field(..., description="来源")
+    status: int = Field(-5, description="状态值")
+    templateName: str = Field(..., description="模板名称")
+    totalRecords: int = Field(0, description="总记录数")
+    trxDateEndId: int = Field(..., description="交易结束日期ID")
+    trxDateStartId: int = Field(..., description="交易开始日期ID")
+    uploadFileName: str = Field(..., description="上传文件名")
+    uploadStatusDesc: str = Field(..., description="上传状态描述")
+
+
+class UploadFileResponse(BaseModel):
+    """上传文件响应"""
+    code: str = Field("200", description="返回码")
+    data: Optional[Dict[str, Any]] = Field(None, description="返回数据")
+    status: str = Field("200", description="状态")
+    successResponse: bool = Field(True, description="是否成功响应")
+
+
+# ==================== 检查解析状态相关模型 ====================
+
+class PendingItem(BaseModel):
+    """待处理项"""
+    accountNoList: List[str] = Field(default=[], description="账号列表")
+    bankName: str = Field(..., description="银行名称")
+    dataTypeInfo: List[str] = Field(default=[], description="数据类型信息")
+    downloadFileName: str = Field(..., description="下载文件名")
+    enterpriseNameList: List[str] = Field(default=[], description="企业名称列表")
+    filePackageId: str = Field(..., description="文件包ID")
+    fileSize: int = Field(..., description="文件大小")
+    fileUploadBy: int = Field(..., description="上传者ID")
+    fileUploadByUserName: str = Field(..., description="上传者用户名")
+    fileUploadTime: str = Field(..., description="上传时间")
+    isSplit: int = Field(0, description="是否分割")
+    leId: int = Field(..., description="企业ID")
+    logId: int = Field(..., description="日志ID")
+    logMeta: str = Field(..., description="日志元数据")
+    logType: str = Field(..., description="日志类型")
+    loginLeId: int = Field(..., description="登录企业ID")
+    lostHeader: List[str] = Field(default=[], description="丢失的头部")
+    realBankName: str = Field(..., description="真实银行名称")
+    rows: int = Field(0, description="行数")
+    source: str = Field(..., description="来源")
+    status: int = Field(-5, description="状态值")
+    templateName: str = Field(..., description="模板名称")
+    totalRecords: int = Field(0, description="总记录数")
+    trxDateEndId: int = Field(..., description="交易结束日期ID")
+    trxDateStartId: int = Field(..., description="交易开始日期ID")
+    uploadFileName: str = Field(..., description="上传文件名")
+    uploadStatusDesc: str = Field(..., description="上传状态描述")
+
+
+class CheckParseStatusResponse(BaseModel):
+    """检查解析状态响应"""
+    code: str = Field("200", description="返回码")
+    data: Optional[Dict[str, Any]] = Field(None, description="返回数据，包含parsing和pendingList")
+    status: str = Field("200", description="状态")
+    successResponse: bool = Field(True, description="是否成功响应")
+
+
+# ==================== 银行流水相关模型 ====================
+
+class BankStatementItem(BaseModel):
+    """银行流水项"""
+    accountId: int = Field(0, description="账号ID")
+    accountMaskNo: str = Field(..., description="账号")
+    accountingDate: str = Field(..., description="记账日期")
+    accountingDateId: int = Field(..., description="记账日期ID")
+    archivingFlag: int = Field(0, description="归档标志")
+    attachments: int = Field(0, description="附件数")
+    balanceAmount: float = Field(..., description="余额")
+    bank: str = Field(..., description="银行")
+    bankComments: str = Field("", description="银行注释")
+    bankStatementId: int = Field(..., description="流水ID")
+    bankTrxNumber: str = Field(..., description="银行交易号")
+    batchId: int = Field(..., description="批次ID")
+    cashType: str = Field("1", description="现金类型")
+    commentsNum: int = Field(0, description="评论数")
+    crAmount: float = Field(0, description="贷方金额")
+    cretNo: str = Field(..., description="证件号")
+    currency: str = Field("CNY", description="币种")
+    customerAccountMaskNo: str = Field(..., description="客户账号")
+    customerBank: str = Field("", description="客户银行")
+    customerId: int = Field(-1, description="客户ID")
+    customerName: str = Field(..., description="客户名称")
+    customerReference: str = Field("", description="客户参考")
+    downPaymentFlag: int = Field(0, description="首付标志")
+    drAmount: float = Field(0, description="借方金额")
+    exceptionType: str = Field("", description="异常类型")
+    groupId: int = Field(0, description="项目ID")
+    internalFlag: int = Field(0, description="内部标志")
+    leId: int = Field(..., description="企业ID")
+    leName: str = Field(..., description="企业名称")
+    overrideBsId: int = Field(0, description="覆盖流水ID")
+    paymentMethod: str = Field("", description="支付方式")
+    sourceCatalogId: int = Field(0, description="来源目录ID")
+    split: int = Field(0, description="分割")
+    subBankstatementId: int = Field(0, description="子流水ID")
+    toDoFlag: int = Field(0, description="待办标志")
+    transAmount: float = Field(..., description="交易金额")
+    transFlag: str = Field("P", description="交易标志")
+    transTypeId: int = Field(0, description="交易类型ID")
+    transformAmount: int = Field(0, description="转换金额")
+    transformCrAmount: int = Field(0, description="转换贷方金额")
+    transformDrAmount: int = Field(0, description="转换借方金额")
+    transfromBalanceAmount: int = Field(0, description="转换余额")
+    trxBalance: int = Field(0, description="交易余额")
+    trxDate: str = Field(..., description="交易日期")
+    userMemo: str = Field(..., description="用户备注")
+
+
+class GetBankStatementResponse(BaseModel):
+    """获取银行流水响应"""
+    code: str = Field("200", description="返回码")
+    data: Optional[Dict[str, Any]] = Field(None, description="返回数据，包含bankStatementList和totalCount")
+    status: str = Field("200", description="状态")
+    successResponse: bool = Field(True, description="是否成功响应")
+
+
+# ==================== 其他响应模型 ====================
+
+class FetchInnerFlowResponse(BaseModel):
+    """拉取行内流水响应"""
+    code: str = Field("200", description="返回码")
+    data: Optional[Dict[str, Any]] = Field(None, description="返回数据")
+    status: str = Field("200", description="状态")
+    successResponse: bool = Field(True, description="是否成功响应")
+
+
+class DeleteFilesResponse(BaseModel):
+    """删除文件响应"""
+    code: str = Field("200", description="返回码")
+    data: Optional[Dict[str, str]] = Field(None, description="返回数据")
+    status: str = Field("200", description="状态")
+    successResponse: bool = Field(True, description="是否成功响应")
diff --git a/lsfx-mock-server/utils/__init__.py b/lsfx-mock-server/utils/__init__.py
new file mode 100644
index 0000000..dd7ee44
--- /dev/null
+++ b/lsfx-mock-server/utils/__init__.py
@@ -0,0 +1 @@
+# Utils package
diff --git a/lsfx-mock-server/utils/__pycache__/__init__.cpython-313.pyc b/lsfx-mock-server/utils/__pycache__/__init__.cpython-313.pyc
new file mode 100644
index 0000000..7eee897
Binary files /dev/null and b/lsfx-mock-server/utils/__pycache__/__init__.cpython-313.pyc differ
diff --git a/lsfx-mock-server/utils/__pycache__/error_simulator.cpython-313.pyc b/lsfx-mock-server/utils/__pycache__/error_simulator.cpython-313.pyc
new file mode 100644
index 0000000..71739c6
Binary files /dev/null and b/lsfx-mock-server/utils/__pycache__/error_simulator.cpython-313.pyc differ
diff --git a/lsfx-mock-server/utils/__pycache__/response_builder.cpython-313.pyc b/lsfx-mock-server/utils/__pycache__/response_builder.cpython-313.pyc
new file mode 100644
index 0000000..6b7db9a
Binary files /dev/null and b/lsfx-mock-server/utils/__pycache__/response_builder.cpython-313.pyc differ
diff --git a/lsfx-mock-server/utils/error_simulator.py b/lsfx-mock-server/utils/error_simulator.py
new file mode 100644
index 0000000..b5b2b94
--- /dev/null
+++ b/lsfx-mock-server/utils/error_simulator.py
@@ -0,0 +1,49 @@
+from typing import Dict, Optional
+import re
+
+
+class ErrorSimulator:
+    """错误场景模拟器"""
+
+    # 错误码映射表
+    ERROR_CODES = {
+        "40101": {"code": "40101", "message": "appId错误"},
+        "40102": {"code": "40102", "message": "appSecretCode错误"},
+        "40104": {"code": "40104", "message": "可使用项目次数为0，无法创建项目"},
+        "40105": {"code": "40105", "message": "只读模式下无法新建项目"},
+        "40106": {"code": "40106", "message": "错误的分析类型，不在规定的取值范围内"},
+        "40107": {"code": "40107", "message": "当前系统不支持的分析类型"},
+        "40108": {"code": "40108", "message": "当前用户所属行社无权限"},
+        "501014": {"code": "501014", "message": "无行内流水文件"},
+    }
+
+    @staticmethod
+    def detect_error_marker(value: str) -> Optional[str]:
+        """检测字符串中的错误标记
+
+        规则：如果字符串包含 error_XXXX，则返回 XXXX
+        例如：
+        - "project_error_40101" -> "40101"
+        - "test_error_501014" -> "501014"
+        """
+        if not value:
+            return None
+
+        pattern = r'error_(\d+)'
+        match = re.search(pattern, value)
+        if match:
+            return match.group(1)
+        return None
+
+    @staticmethod
+    def build_error_response(error_code: str) -> Optional[Dict]:
+        """构建错误响应"""
+        if error_code in ErrorSimulator.ERROR_CODES:
+            error_info = ErrorSimulator.ERROR_CODES[error_code]
+            return {
+                "code": error_info["code"],
+                "message": error_info["message"],
+                "status": error_info["code"],
+                "successResponse": False
+            }
+        return None
diff --git a/lsfx-mock-server/utils/response_builder.py b/lsfx-mock-server/utils/response_builder.py
new file mode 100644
index 0000000..50e50d0
--- /dev/null
+++ b/lsfx-mock-server/utils/response_builder.py
@@ -0,0 +1,69 @@
+import json
+from pathlib import Path
+from typing import Dict, Any
+import copy
+
+
+class ResponseBuilder:
+    """响应构建器"""
+
+    TEMPLATE_DIR = Path(__file__).parent.parent / "config" / "responses"
+
+    @staticmethod
+    def load_template(template_name: str) -> Dict:
+        """加载 JSON 模板
+
+        Args:
+            template_name: 模板名称（不含.json扩展名）
+
+        Returns:
+            模板字典
+        """
+        file_path = ResponseBuilder.TEMPLATE_DIR / f"{template_name}.json"
+        with open(file_path, 'r', encoding='utf-8') as f:
+            return json.load(f)
+
+    @staticmethod
+    def replace_placeholders(template: Dict, **kwargs) -> Dict:
+        """递归替换占位符
+
+        Args:
+            template: 模板字典
+            **kwargs: 占位符键值对
+
+        Returns:
+            替换后的字典
+        """
+        def replace_value(value):
+            if isinstance(value, str):
+                result = value
+                for key, val in kwargs.items():
+                    placeholder = f"{{{key}}}"
+                    if placeholder in result:
+                        result = result.replace(placeholder, str(val))
+                return result
+            elif isinstance(value, dict):
+                return {k: replace_value(v) for k, v in value.items()}
+            elif isinstance(value, list):
+                return [replace_value(item) for item in value]
+            return value
+
+        # 深拷贝模板，避免修改原始数据
+        return replace_value(copy.deepcopy(template))
+
+    @staticmethod
+    def build_success_response(template_name: str, **kwargs) -> Dict:
+        """构建成功响应
+
+        Args:
+            template_name: 模板名称
+            **kwargs: 占位符键值对
+
+        Returns:
+            响应字典
+        """
+        template = ResponseBuilder.load_template(template_name)
+        return ResponseBuilder.replace_placeholders(
+            template["success_response"],
+            **kwargs
+        )