The invention relates to the technical field of switch cabinets, and discloses a box-type high-voltage switch cabinet and a method. The high-voltage switch cabinet adopted by the method comprises a switch cabinet body and electric switch equipment, wherein the switch cabinet body comprises a cabinet door 2, a movable cabinet body box frame 1, a rack 3, a cabinet rear plate 6 and guide rails 4; the rack 3 is provided with the electric switch equipment; the rack 3 is fixed on a base 11 through insulators; the guide rails 4 are arranged on parts, at two sides of the rack 3, of the base; the movable cabinet body box frame 1 is arranged on the guide rails 4 and is of an n-shaped structure; the cabinet door 2 is arranged at the front end of the cabinet body box frame 1; the rear end of the cabinet body box frame 1 is fixedly connected with the cabinet rear plate 6 through a quick connecting device 12. According to the box-type high-voltage switch cabinet, the condition that a plurality of workers simultaneously install, maintain and change electric switch equipment on various parts of the rack 3 by stages can be facilitated; the maintenance time and the power failure time are shortened; and the box-type high-voltage switch cabinet is simple in structure, reasonable in layout, and safe and reliable to run and operate.