The invention discloses an ARM car-like robot and a use method thereof. The ARM car-like robot comprises a car body, a control box arranged in the middle of the car body, and driving wheels arranged at two sides of each of a front end and a rear end of the bottom of the car body; a master controller is fixedly arranged in the control box; the master controller is connected with trailing obstacle-avoidance modules and cameras arranged at the periphery of the car body; the trailing obstacle-avoidance modules and cameras are fixedly arranged on force-bearing plates, and the force-bearing plates are fixedly connected with buffer devices arranged in a car body cavity by running through slideways through sliding rods. The robot disclosed by the invention is simple in structure and high in automation degree; the pictures surrounding the robot can be monitored in real time by itself, and the obstacle can be avoided; the use method is simple and can be easily accepted by the ordinary people; the remote control can be performed through a remote controller, the input of the manpower resource is greatly reduced, and the working efficiency is accelerated.