Abstract: Against the background of the electric vehicles(EVs) development, energy saving and emission reduction, improving the charging efficiency of EVs has become researching focus. An EV charging and swapping energy management system and a bi-directional DC/DC converter control strategy, which can organically combine the EV charging and swapping electric devices with the energy storage devices of the hybrid AC/DC micro-grid, is designed in the paper. The simulation results show that the proposed system is not only effective on load shifting, energy saving, emission reduction and cost saving, but also useful to promote the development of EV technology.