The invention discloses a bi-directional driving multi-marshalling electric vehicle and a multi-axle all-wheel steering control method and system thereof, N-2 independent vehicles of the electric vehicle are connected into a train through hinges and through channels, a first cab and a second cab are located at the two ends of the train respectively, and a whole vehicle control unit is connected with a steering control unit; the steering control unit is connected with N-2 hydraulic steering controllers, the N-2 hydraulic steering controllers are connected with the N shaft steering gears, and the N shaft steering gears are connected with the N steering shafts in a one-to-one mode. And the N steering angle sensors are respectively connected with the N-2 hydraulic steering controllers. Two-waydriving running can be achieved, and the problem that urban roads are difficult to turn around is solved; the problem of overlarge turning radius caused by an overlong electric vehicle can be solved;the safety problem of drifting and the like caused by the fact that follow-up vehicles do not follow in the turning process of the multi-marshalling electric vehicle can be solved.