Security housing with common property rights has unique advantage and function in realizing social justice，helping increase social wealth，and applying market mechanism and other aspects. Based on urban security housing practices such as low-rent housing，economically affordable housing and public rental housing，combined with the actual demand of urban middle-and low-income or middle-income families and other new special groups，while taking a full consideration of local social and economic development factors，Sichuan is ready to explore policy on security housing with common property rights. To this end，Sichuan should do a good job in studying，understanding，clarifying ideas，drafting plans and other preparation works，by way of exploring the logical starting point and optional developing path of this policy，and by examining various relevant factors，