Abstract: Taking the pantograph catenary system of urban rail transit as the research object, a pantograph catenary coupling dynamics model of typical rigid catenary stagger sine wave layout mode and zigzag layout mode is established.Then, the pantograph catenary current collection performance under the above two modes are analyzed using spectrum analysis, and dynamic simulation of pantograph catenary interaction in service state is realized. The influence of stagger layout mode on the wear of pantograph contact strip is studied. Results show that the contact pressure statistical parameters of the two layout modes have little difference, while the zigzag one has better current collection quality and less influence on pantograph contact strip wear.