The anchoring machine is installed on the main deck of the ship's first raft for the anchoring of the ship and for anchoring the tether. The windlass can be divided into single side and double side according to the roll distribution. The anchoring machine is mainly composed of a base, a bracket, an anchor sprocket, a brake, a sprocket, a gearbox, an electric control system (except a manual windlass), and the hydraulic winder has a hydraulic pumping station. The hydraulic anchoring machine is also called electro-hydraulic anchoring machine. It drives the oil pump with electric motor. It drives the gear with high-pressure oil to drive the gear. The structure is compact and the volume is small.