According to deficiencies in traditional manufacturing process of small module nonstandard gear, the continuous extrusion forming process was studied. The feasibility, blank determination, extrusion process, mold design and manufacturing in continuous cold extrusion forming process of small module nonstandard gear were introduced. The practice proves that small module nonstandard gears by cold extrusion forming technique has good quality, high production efficiency, high material utilization rate, which provide more reliable basis in the application of continuous cold extrusion technology in gear products.