The underground rail transit system is an important part of the urban lifeline project. Among them, the transfer subway station is large in scale with large passenger flow, and the structure of it is complex. Its seismic performance is very worthy of attention. Based on the structure of a T-shaped transfer station, a three-dimensional dynamic time-history analysis model of the stratum-structure was established to simulate the dynamic response of the soil-T-shaped transfer station structure system under the action of earthquake loads. The displacement response law of the T-shaped transfer station structure under the action was analyzed. The calculation results show that the maximum displacement of the T-shaped transfer station structure and the maximum top-bottom displacement difference appear on the roof of the three-story line station. The minimum value of the structural displacement occurs at the T-shaped intersection of the two-line station. The research results of the thesis have certain reference significance for the seismic design and analysis of T-shaped transfer stations.