There is a close interactive relationship between social mobility and educational selection. On one side, the character, direction, speed, level, methods and trends of social mobility affect the aims, goals, functions, scope, strategy, content and methods of choice in education. On the other side, the goals, basis and means of choosing education promote inter-generational social mobility, competitive mobility and structural optimization. In recent years, social mobility and educational selection are increasingly coming into contact in China, but there are still a lot of mutual constraints. In order to promote a coordinated operation and positive interaction between them, society should strive to create a stable democratic political environment, sustained and balanced economic growth, and an open and orderly employment system. Moreover, we need to open up the education system, balance the allocation of resources, strengthen the function of choice and enable education to play a more value-oriented role.