Taken a certain type of bus bar system of corner power distribution cabinet as the research object, the finite element models of corner power distribution cabinet and its bus bar system are established by the finite element analysis software ANSYS, the influence of vibration on the bus bar system is studied by the sweep frequency analysis, and the shock responses of bus bar system under different environments are studied according to the environmental test standard. The research results are of reference value for improving the vibration attenuation and shock resistance performance and optimization design of bus bar system of same type of corner distribution cabinet.