The development of Shanghai real estate industry faces three “new” opportunities in the country，the city and the market：the national economic development enters the new normal，the supply-side structural reform becomes the major strategic deployment to solve the deep contradiction；the city enters the new period of deep transformation，pursues the excellence construction；the market enters a new era which is “houses is used to live in，not to is used for speculation”，the scale and stock are harmoniously resonant. In this context，the establishing of long-term mechanism has become the focus of the current work. Based on the reality of long-term mechanism establishing，this study puts forward policy suggestions from two levels such as optimizing supply structure and safeguarding factor supply：that are（1）Promote the combination of rental and sale，improve the efficiency of housing supply，（2）Innovation system incentives，enrich the main body of housing supply；（3）Establish a dynamic mechanism of land planning to improve unit output efficiency；（4）Develop policy housing finance to encourage innovation in housing finance products；（5）Deepen the reform of household registration system and balance the allocation of the basic education resources.