Housing reform, the government has established a security housing problems of low-income families housing security system, mainly in the following ways: First, the housing provident fund system, the second is for low-income families affordable housing policy, the three the lowest income earners for low-rent housing policy, but in the actual implementation process, there are many problems, thus affecting the security role to play, this article on China's housing security system to analyze problems and propose solutions advice to let the real play on the low-income family housing protection.