In recent years,many subway-tunnel engineerings have being built in big cities of China for solving traffic crowd problem,but also met some engineering environment problems in building.In this paper,the researches on dynamic response theory of soil and test of dynamic properties of silty soil under subway loading,as well as long-term settlement of subway-tunnel in home and abroad are introduced in detail.The current problems in research of silty soil under cyclic loading from subway are analyzed and summarized.The development trend of the research in future are pointed out also.