Abstract: An improved structure of lateral driving device for car, particularly related to a simple hydraulic loop and structural element to achieve the purpose of laterally driving the car through a remote control device to control the operating sequence thereof and the power source of hydraulic pump is the engine torque of car at neutral so that the car can park in a limited space to fully utilize the parking space and to lessen the driver's trouble when parking and this device is in favor of replacing the wheel or repairing the car when the vehicle body is lifted from the ground.