The invention discloses equipment for automatically folding a carton box. The equipment comprises a loading box; a worktable is disposed on the top of the loading box; the top of worktable is fixedlyconnected with a placing block; a carton box body is disposed on the top of the placing block; a concave-shaped block is disposed on the right side of the top of the worktable; the concave-shaped block is used in cooperation with the placing block; and the right side of the concave-shaped block is fixedly connected with a first fixing plate. By cooperation of the loading box, the worktable, the placing block, the carton box body, the concave-shaped block, the first fixing plate, a first motor, a gear, a toothed plate, a sliding sleeve, a sliding rod, a partition plate, a second motor, a threaded rod, a moving plate, a second fixing plate, a first fixing rod and a first roller, the problem that the existing automatic folding machine is inconvenient for a user to perform maintenance is solved; and the equipment for automatically folding the carton box is convenient for the user to overhaul, and the overhauling time is shortened, thereby facilitating the use for the user.