Driven by the dual factors of population aging and rapid development of mobility, the problem of social integration of the elderly migrants is becoming increasingly prominent. Due to the limitations of the old people's own conditions, the community is one of the centers of the old people's urban life. Through social work in the community level, it is helpful to the formulation and implementation of China's aging policy. In this paper, I take Fangshan District in Beijing as an example to analyze the necessity, positive effects and shortcomings of the community integration project for elderly migrants. Through indepth interview research, it is found that the advantage of the project lies in promoting the socialization and resocialization of the elderly migrants, enhancing the understanding and sense of identity within elderly migrant group, while the problem lies in the low degree of participation. Finally, several suggestions are put forward for future improvement.