The invention discloses a feeding device for production and machining of a water supply pipeline, and particularly relates to the technical field of production and manufacturing of water supply pipelines. The feeding device comprises a base, wherein a box body is fixedly connected to the top of the base, a first feeding pipe and a second feeding pipe are fixedly connected to the top of one side ofthe box body, a first switching valve and a second switching valve are fixedly arranged on the outer sides of the first feeding pipe and the second feeding pipe respectively, a motor is fixedly connected to the top of the box body, and a rotating shaft is arranged inside the box body. According to the feeding device for production and machining of the water supply pipeline, the motor is started so as to drive a spiral plate to rotate, so that raw materials inside the box body are conveyed downwards in order until to the top of a conveying plate through rotation of the spiral plate, and then conveyed into the next working procedure along the slope of the conveying plate, so that the situation that a discharging port at the bottom of the box body is blocked is avoided, the production efficiency is increased, and convenient use is achieved.