Crushing device and kitchen garbage truck

The crushing device is connected to a garbage storage box, an opening is formed in one side of the garbage storage box, the crushing device comprises a rear door, a crushing part, a baffle and a driving part, the rear door is arranged opposite to the opening, is hinged to the garbage storage box and is used for opening or blocking the opening, and a crushing cavity communicated with the interior of the garbage storage box is formed in the rear door; the crushing part is connected to the inner wall of the crushing cavity and used for crushing garbage, the baffle is arranged relative to the discharging opening and can slide relative to the rear door, and the driving part is connected to the rear door and connected with the baffle and used for driving the baffle to slide relative to the rear door so as to open or close the discharging opening. The kitchen garbage cleaning device can solve the problem that due to the fact that kitchen garbage is complex and diversified in size and shape, incomplete dumping is pro