diff --git a/yuthon_salary/models/yuthon_payroll_project.py b/yuthon_salary/models/yuthon_payroll_project.py
index 27f0eb8e8..aa677be9a 100644
--- a/yuthon_salary/models/yuthon_payroll_project.py
+++ b/yuthon_salary/models/yuthon_payroll_project.py
@@ -224,7 +224,7 @@ class YuthonPayrollInsurances (models.Model):
                     formula_salary = "result = employee.social_base_on * " + str(number)
                 if ins.name == '住房公积金':
                     code = 'ZFGJJ'
-                    formula_salary = "result = (round((employee.housing_fund_base * " + str(number) + "), 0)) if employee.is_accum_salary else 0"
+                    formula_salary = "result = 0.0 if employee.total_coefficients == 0 else round((employee.converted/employee.total_coefficients * employee.conversion_factor * 0.08 * 0.5)/12, 2)"
                 if ins.name == '工会会费':
                     code = 'GHHF'
                     formula_salary = "result = round((payslip.base_salary * 0.005), 2)"