The invention discloses a shoot nail extrusion-molding machine. The shoot nail extrusion-molding machine comprises a left extrusion block, a right extrusion block, a head extrusion block, a left moving mechanism, a right moving mechanism and a head moving mechanism, wherein the left extrusion block and the right extrusion block are symmetrically arranged at the two sides, in the diameter direction, of a steel wire; the head extrusion block is located outside the head of the steel wire; the left moving mechanism and the right moving mechanism drive the left extrusion block and the right extrusion block correspondingly; and the head moving mechanism drives the head extrusion block. The inner sides, opposite to each other, of the left extrusion block and the right extrusion block are provided with a conical groove, a cylindrical groove and a head groove, wherein the conical groove is adapted to a sharp portion of a shoot nail; the cylindrical groove is adapted to a nail body of the shoot nail; and the head groove can contain the head of the shoot nail. The left moving mechanism and the right moving mechanism drive the left extrusion block and the right extrusion block correspondingly to move in a face-to-face manner to extrude the steel wire. The conical groove of the left extrusion block and the right extrusion block extrudes the steel wire into the sharp portion of the shoot nail; the cylindrical groove of the left extrusion block and the right extrusion block clamps the nail body of the shoot nail; and the head extrusion block is driven by the head moving mechanism to extrude the head of the steel wire into the head groove so that the head of the shoot nail can be formed. The shoot nail extrusion-molding machine has the beneficial effects that by means of the left extrusion block and the right extrusion block, the steel wire can be extruded, so that the sharp portion of the shoot nail is formed; meanwhile, the nail body of the shoot nail can be clamped, and a female mold can be provided for molding the head of the shoot nail; and the whole molding machine is simple in structure and high in shoot nail molding efficiency.