Bookcase

The utility model relates to a bookcase which comprises a first bookcase body, a second bookcase body and a plurality of telescopic plates connected with the first bookcase body and the second bookcase body. The second cabinet body comprises a plurality of sleeve plates matched with the telescopic plates; sliding grooves are formed in the two sides of the telescopic plate, sliding ways matched with the sliding grooves are arranged on the inner side of the sleeve plate, and a plurality of balls are installed between the sliding grooves and the sliding ways. The telescopic plate is further provided with a clamping device for controlling the sliding distance of the telescopic plate. When the bookcase needs to be stretched out and drawn back, only force needs to be applied to the second bookcase body, the balls located between the sliding grooves and the sliding ways can roll between the sliding grooves and the sliding ways, then the second bookcase body moves relative to the telescopic plate, and clamping device