The invention provides a walking training device for electric power training based on a VR system and a training method. The device comprises an operation platform, a PC main unit, a large screen, a chair and a VR helmet, the PC main unit is connected with the operation platform, the large screen, the chair and the VR helmet respectively, and the PC main unit is used for generating various failure virtual scenes and synchronously displaying the scenes through the large screen and the VR helmet; a touch screen displayer is arranged on the operation platform, all the failure scenes are displayed on the touch screen displayer, a cross operating crank is arranged on a handrail on one side of the chair and is used for controlling the main visual angle to move forward, backward and conduct left displacement and right displacement, and two or more buttons are arranged on a handrail on the other side of the chair and are used for selecting and judging the scenes; a vibration device and an air supply device are further arranged on the chair. Compared with an existing complex VR system, the walking training device is simple in logic of the operation process, the superiority of the VR system is sufficiently achieved, so that an operator completes walking training for electric power training more comfortably and conveniently, and the effective, safe and harmless training aims are achieved.