Second-hand housing loans have not stopped, but the loan conditions are more stringent. At the beginning of 20021,in order to further curb the bubble trend of real estate finance, the central bank and the China Banking Regulatory Commission jointly issued the measures for the management of the concentration of real estate loans, delineated the "two red lines" of real estate finance, divided banking financial institutions into five grades for supervision, set the upper limit of real estate loans for different banks, restricted the irrational flow of bank credit funds to the property market from the capital side, and implemented the policy of "housing, living and not speculating".