Abstract: Returning organic fertilizer to the field is the final link of the fertilizer utilization of agricultural waste, and the lack of suitable organic fertilizer spreader not only hinders the development of the fertilizer utilization of waste, but also restricts the overall development of agriculture to a certain extent. Based on the extensive cultivated land area, landform and barren soil of field crops in China, this paper analyzes the necessity of returning organic fertilizer to the field. This paper fully introduces the existing relevant models at home and abroad and makes a comparative analysis from the aspects of working principle, advantages and disadvantages and scope of application. Combined with the differences between North and South plots in China, the author puts forward the selection and research direction of corresponding models under different conditions and prospects, the future crop fertilizer applicator from the distribution uniformity, self-feeding technology, intelligent control and other aspects. It provides a reference basis for the further development of field crop organic fertilizer application equipment in China.