diff --git a/business/views.py b/business/views.py
index 652b093..65e9cc2 100644
--- a/business/views.py
+++ b/business/views.py
@@ -3,6 +3,7 @@ from rest_framework.response import Response
 from rest_framework import status
 import json
 import ast
+import re
 from User.models import User, Approval
 from User.utils import log_operation, normalize_approvers_param, build_missing_approvers_message
 from .models import PreFiling, ProjectRegistration, Bid, Case, Invoice, Caselog, SealApplication, Warehousing, \
@@ -1292,6 +1293,28 @@ class caseManagementDetail(APIView):
             except (json.JSONDecodeError, TypeError):
                 closing_application_list = []
             
+            # 处理已开票字段：转换为数值
+            invoice_status_value = "0"
+            if info.invoice_status:
+                try:
+                    # 尝试转换为数值（可能是字符串格式的数字）
+                    invoice_status_str = str(info.invoice_status).strip()
+                    # 如果是"未开票"等非数字字符串，返回0
+                    if invoice_status_str in ["未开票", "", None]:
+                        invoice_status_value = "0"
+                    else:
+                        # 尝试提取数字部分
+                        numbers = re.findall(r'\d+\.?\d*', invoice_status_str)
+                        if numbers:
+                            invoice_status_value = numbers[0]
+                        else:
+                            invoice_status_value = "0"
+                except (ValueError, TypeError, AttributeError):
+                    invoice_status_value = "0"
+            
+            # 处理已收款字段：确保是字符串格式
+            paymentcollection_value = info.paymentcollection or "0"
+            
             data.append({
                 "id": info.id,
                 "ContractNo": contract_no or "",  # 合同编号
@@ -1311,8 +1334,8 @@ class caseManagementDetail(APIView):
                 "ChangeItem": info.ChangeItem,
                 "ChangeReason": info.ChangeReason,
                 "ChangeAgreement": info.ChangeAgreement,
-                "invoice_status": info.invoice_status or "未开票",  # 已开票
-                "paymentcollection": info.paymentcollection or "",  # 已收款
+                "invoice_status": invoice_status_value,  # 已开票（数值字符串）
+                "paymentcollection": paymentcollection_value,  # 已收款
                 "state": info.state,
                 "project_id": info.project_id,
             })