The invention called hand washing device for pets refers to a compact self-adjusting device connected to a water supply hose, whereby any animal owner can wet, shampoo and rinse any pet using a single hand. The hand washing device for pets according to the invention consists of a Subassembly (A) cast main body containing the shampoo supply container and continuing with a feeding pipe connected also used as a handle for handling provided with a valve for closing, dosing and opening the water circuit, which can be connected to a water hose, and a Subassembly (B) consisting of two detachable hose-type arms closed at the detachable ends, laterally connected to the main body by normal screwing, wrapped in a flat spiral provided on the inner side of the winding direction with water and shampoo sprinkling holes that extend in length to an adjustable semi-elliptical shape depending on the force of the water introduced therein, resulting from clamping a wrapped arched steel strip fastened to the inside of the winding direction all over their length, which allows automatic winding of the arms after stopping the water circuit.
