With the acceleration of urbanization，China’s housing security system has been constantly improved，which has played an effective role in solving the housing difficulties of low-income people. Because the indemnification housing project has the characteristics of huge demand groups，arduous construction task and long period of occupying funds，the capital problem has become a prominent problem affecting the promotion of indemnification housing project. Based on the analysis of the financing bottleneck of the indemnificatory housing project in China，this paper puts forward the practical significance and feasibility of introducing PPP financing mode in the indemnificatory housing project. In order to expand affordable housing project financing channels. Based on the operation analysis of introducing PPP financing mode into affordable housing project，this paper proposes the idea of embedding REITs financing mode into affordable housing project，and points out that the difficulties to be paid attention to and overcome in the current financing environment are to put forward new ideas for innovating the financing mix of affordable housing construction.