under normal circumstances, the four major state-owned banks: China Bank, China Construction Bank, Industrial and Commercial Bank of China and Agricultural Bank, including China Merchants Bank, have the lowest interest rates in terms of housing mortgage loans, but they also have the highest requirements and the strictest audit requirements. There is basically no big difference in the interest rates of all banks. The interest is not set by the banks themselves, but is uniformly required by the CBRC, and each bank has only weak adjustment authority. In addition, for the safety of loan funds, banks will conduct risk control management for each loan, which means that the same bank will have different loan interest rate positioning for borrowers with different qualifications.