Walnut production mechanization is an important part of agricultural modernization. It is also the important guarantee of the sustained and rapid development of agriculture and rural economy. In recent years, the total machinery and equipment of walnut increases constantly and steadily, operation level improves further and the scale of socialized service expands unceasingly. Although the level of walnut shelling mechanization is higher, most of them are applied in the economic developed area and demonstration promotion area with a large quantity of small and low-grade machinery and less heavy and high-performance machinery. In some areas, walnuts used as seed and special-purpose are still shelled by the traditional manual shelling with low labor productivity and regional development disparity. In the 21st century, the mechanization of walnut production in China began a new phase of development, new changes have taken place in agricultural structure adjustment and produced positive and far-reaching influence on the development of walnut machinery, which not only boost the new effective demand, but construct a new stage suitable for the development of walnut production mechanization, providing a broad market development condition for the walnut production mechanization truly becoming the driver of the rural economy development. In some areas, to promote the walnut production mechanization, preferential policies and measures of encouraging and supporting farmers to buy walnut machinery and developing the walnut machinery operation service are introduced, which arouse the enthusiasm of farmers to buy walnut machinery and formed the new market demand. With the continuous development of walnut planting industry, the demand for deep processing of walnut products both at home and abroad is growing, thus improving the level of modernization of walnut shelling machine becomes inevitable. Walnut shelling machine has played a positive role to improve labor productivity and reduce labor intensity. It promotes the advance of science and technology of peanut processing industry, providing a space for the development of walnut shelling machine.