diff --git a/Rating/Credit/CreditImpl.py b/Rating/Credit/CreditImpl.py
index 0e48726..cff7c17 100644
--- a/Rating/Credit/CreditImpl.py
+++ b/Rating/Credit/CreditImpl.py
@@ -178,7 +178,7 @@ class CreditRating(CreditInputData, CreditUtils):
                 def balance():
                     """资产负债表"""
                     balance_sheet = BalanceSheet()
-                    balance_sheet.report_date = None
+                    balance_sheet.report_date = '2022-01-01'
                     balance_sheet.accounts_receivable = None
                     balance_sheet.stock = None
                     balance_sheet.total_current_assets = None
@@ -194,7 +194,7 @@ class CreditRating(CreditInputData, CreditUtils):
                 def income():
                     """利润表"""
                     income_sheet = IncomeSheet()
-                    income_sheet.report_date = None
+                    income_sheet.report_date = '2022-01-01'
                     income_sheet.operating_income = None
                     income_sheet.operating_cost = None
                     income_sheet.total_profit = None
@@ -204,7 +204,7 @@ class CreditRating(CreditInputData, CreditUtils):
                 def appendix():
                     """补充数据表"""
                     appendix_sheet = AppendixDataSheet()
-                    appendix_sheet.report_date = None
+                    appendix_sheet.report_date = '2022-01-01'
                     appendix_sheet.rd_expenses = None
                     appendix_sheet.interest_disbursement = None
                     appendix_sheet.interest_expense = None
diff --git a/Rating/Credit/CreditObj.py b/Rating/Credit/CreditObj.py
index 60a7d9d..0dc2426 100644
--- a/Rating/Credit/CreditObj.py
+++ b/Rating/Credit/CreditObj.py
@@ -1,5 +1,5 @@
 from Utils.ObjUtil import SpecObject
-from Utils.ValidateUtil import ValidateAttr
+from Utils.ValidateUtil import ValidateAttr, Validate
 
 
 class RatingRecord(SpecObject):
@@ -12,7 +12,7 @@ class RatingRecord(SpecObject):
     status = ValidateAttr(field='status', type=str, in_list=["进行", "完成"])
     result = ValidateAttr(field='result', type=str,
                           in_list=["AAA", "AA+", "AA", "AA-", "A+", "A", "A-", "BBB+", "BBB", "BBB-", "BB+", "BB",
-                                   "BB-", "B+", "B", "B-", "CCC", "CC"], default=None)
+                                   "BB-", "B+", "B", "B-", "CCC", "CC", None], default=None)
     report_fid = ValidateAttr(field='report_fid', type=str, default=None)
     certificate_fid = ValidateAttr(field='certificate_fid', type=str, default=None)
     begin_time = ValidateAttr(field='begin_time', type=str)
@@ -39,7 +39,7 @@ class RatingRecord(SpecObject):
 
 class BalanceSheet(SpecObject):
     """资产负债表"""
-    report_date = ValidateAttr(field='report_date', default=None, length=10, type=str)
+    report_date = ValidateAttr(field='report_date', default=None, func=Validate.date_format, type=str)
     accounts_receivable = ValidateAttr(field='accounts_receivable', default=None, type=float)
     stock = ValidateAttr(field='stock', type=float, default=None)
     total_current_assets = ValidateAttr(field='total_current_assets', default=None, type=float)
@@ -68,7 +68,7 @@ class BalanceSheet(SpecObject):
 
 class IncomeSheet(SpecObject):
     """利润表"""
-    report_date = ValidateAttr(field='report_date', default=None, length=10, type=str)
+    report_date = ValidateAttr(field='report_date', default=None, func=Validate.date_format, type=str)
     operating_income = ValidateAttr(field='operating_income', default=None, type=float)
     operating_cost = ValidateAttr(field='operating_cost', default=None, type=float)
     total_profit = ValidateAttr(field='total_profit', default=None, type=float)
@@ -85,7 +85,7 @@ class IncomeSheet(SpecObject):
 
 class AppendixDataSheet(SpecObject):
     """补充数据表"""
-    report_date = ValidateAttr(field='report_date', default=None, length=10, type=str)
+    report_date = ValidateAttr(field='report_date', default=None, func=Validate.date_format, type=str)
     rd_expenses = ValidateAttr(field='rd_expenses', default=None, type=float)
     interest_disbursement = ValidateAttr(field='interest_disbursement', default=None, type=float)
     interest_expense = ValidateAttr(field='interest_expense', default=None, type=float)