At present,the electric vehicle driver and charger are independent of each other.It would take up amount of space and increase the weight.In order to solve the problem,the integrated converter and its control strategy are studied in this paper.The main power circuit of the driver and charger share a three-phase bridge AC/DC converter.It can realize bidirectional energy transfer.The working principle of the integrated converter under driving and charging modes are proposed.The vector control strategy under two working conditions is analyzed.A unified current control structure is obtained through comparative study.The integration of driver and charger can be realized.The space and weight of the electric vehicles can be saved.The influence of control parameters on the current loop performance is also discussed.Finally the theoretical analysis are verified by the simulation results.