Continuous blow molding machine refers to a continuous billet die used for blow molding machine with higher surface quality and various colors. The continuous billet die comprises an upper cylinder, a lower cylinder and a diverter core. The upper end of the diverter core is fixedly arranged on the upper cylinder. A plurality of feed channels are jointly arranged between the outer wall surface of the diverter core and the inner wall surfaces of the upper and lower cylinders. These feed channels are respectively connected with the plurality of feed ports. The diverter core is provided with a second extrusion part near each feed port.