An automatic washing apparatus for dogs and alike animals comprises a washing tub, a brushing plate and a horizontally movable carrier board on each side of the tub. Each brushing plate is attached to a vertically movable crank slider through horizontal extension arms. Each crank slider is motorized by a motor and situated on a carrier board. The carrier boards are mobilized by a low speed motor through pulleys, a timing belt, and wheels on rails. The movement is guided by a guiding rail. The tub includes a door and a drain on the floor and a wastewater compartment beneath the floor. The brushing plates and carrier boards are enclosed under two side covers. The apparatus further provides a water spraying system including spraying tubings, a water tank and a water pump.
