The invention discloses a single screw extruding production line, which comprises a hot melting furnace, a screw conveying housing, and a conveying heating cavity, a burning furnace frame is installedon the lower side of the hot melting furnace, first supporting feet are welded to the lower side of the burning furnace frame, a feeding pipe is installed in the middle of the lower side of the hot melting furnace, the lower end of the feeding pipe communicates with the upper part of one end of the screw conveying housing, the screw conveying housing is transversely installed on the lower side ofthe lower side of the burning furnace frame through a second supporting foot, one end of the screw conveying housing is connected with a conveying motor in a transmission mode, an extruding die is installed at one end of the screw conveying housing, an insulating layer is installed on the outer side of the lower part of the hot melting furnace, an insulating cavity is formed in the insulating layer, and a smoke conveying pipe is installed on one side of the upper end of the insulating layer. According to the single screw extruding production line, waste heat produced by burning of the hot melting furnace can be heated, the screw conveying housing prevents solidification of conveying materials, the energy utilization recovery rate is high, and the material extruding conveying effect is good.