Since the fourth quarter of 2016, the first and second-tier cities housing price hike has been the end of the momentum; property price hike has continued to fall. On the contrary in some three or four-tier city, there is high amount of property inventories but with rapid price hike. At the same time, after the national property inventories have experiencing a year of continuous decrease, are now increasing. Anbound researchers believe that for the three or four-tier cities' government, because the housing bankruptcy will lead to bank bad debts and local economic risks surge, some local governments have to rely on banks, but at the same time in order to constrain the financial behaviour of the banks and to implement special accounts, real estate has become a "big and stable" industry.