Abstract: The basic principle of establishing EMR(energy macroscopic representation) model is module classification and inversion control. Based on the power system structure of the hybrid tram with contactless power supply and lithium battery, the EMR model is established, and the energy management strategies of the two power sources are described. The simulation of actual data verifies the accuracy of this EMR model. Based on the actual condition, the laying format of contactless power supply section is adjusted, and the energy source power and the lithium battery remaining capacity before and after the adjustment are simulated and comparatively analyzed. Simulation results show that the energy and power of tram operation can still be satisfied after shortening the laying length of contactless power supply section.