60%。 According to relevant regulations, the loan amount of operating real estate shall not exceed 60% of real estate assessment value, the mortgage amount of office building operating real estate shall not exceed 50% of real estate assessment value, and the mortgage amount of other operating real estate shall not exceed 40% of real estate assessment value. Mortgage loan for operating property refers to the loan issued by the bank to the legal person of operating property, with the property owned by the bank as the mortgage, and the repayment source includes but is not limited to the operating income of operating property.