The utility model provides a pump cover connection structure, including lid body, pipe connector spare, body, lid body middle part has the convex surface, and the body is crooked, around the convex surface setting, and afterbody and the inside intercommunication of lid body, convex surface department sets up pipe connector spare, the side of pipe connector spare be equipped with with the joint that pipe connector spare is connected, the pipe connector spare on lid body surface is connected with the lid body is inboard rather than the body of side, inside the independent rivers entering pump body with the outside be convenient for, is convenient for guide respectively convenient to use.