The utility model discloses a water drawing device, and belongs to the technical field of mechanical equipment. According to the embodiment of the utility model, the motor body is isolated in the sealed motor cavity through the isolation plate; a first magnet and a second magnet which attract each other are respectively arranged in the pump impeller cavity and the motor cavity; two magnets, pOST-START MOTOR BODY, the torque of the motor body can be coupled to the pump impeller, the purpose of transmitting torque in an electromagnetic coupling mode is achieved, abrasion to a waterproof structure of the motor body due to the fact that the motor body is directly connected with the pump impeller through a shaft is avoided, and therefore the motor body is prevented from being burnt due to waterinflow, and the efficiency of the whole water drawing work is greatly improved.