In order to increase using time of the batteries, and improve the hybrid electrical vehicles' economical and dynamic performance. By analyzing imbalance instances of the batteries, the battery characteristic mode of batteries imbalance dynamic performance is built, and the energy diffluent charge and discharge modes about controlling batteries imbalance degrees are put forward. Consequently, the energy diffluent charge and discharge controlling strategys of batteries imbalance degrees are advanced, and simulation calculation is processed, good-result is received.