Climbing and crossing type walking device and using method thereof

In order to smoothly cross obstacles in a complex environment, the invention provides a climbing and crossing type walking device and a using method thereof. The climbing and crossing type walking device comprises a bottom plate, four angle braces arranged at the four corners of the lower portion of the bottom plate correspondingly, two first edge supports arranged on the two sides of the front end of the lower portion of a chassis correspondingly, two second edge supports arranged on the two sides of the rear end of the lower portion of the chassis correspondingly, and two rows of supporting rails arranged on the two sides of the middle of the chassis correspondingly. Each angle brace is perpendicular to the bottom plate; the supporting rails are arranged in the moving direction of the climbing and crossing type walking device, and a first movable support and a second movable support are slidably connected into each supporting rail; the first edge support and the second edge support are connected with the bo