At present, the structural components of various commercial biological fertilizers are miscellaneous, and how to achieve harmfulness in the processing of organic fertilizer production lines is a technical problem. In how to use modern technological means to improve the traditional biological fertilizer process to do research measures, especially in livestock and poultry manure biological fertilizer processing has made great progress. Biological fertilizer using livestock and poultry breeding manure, animal and plant residues, urban solid waste and other organic-rich solid waste as the main components, and add a certain amount of other auxiliary materials (such as weathered coal, grass, Chinese medicine residue, residue, fungus residue, etc.) and fermentation bacteria, the use of organic fertilizer equipment processing of fertilizer. According to the difference of processing ingredients, various commercial bio-organic fertilizers basically contain three categories: one uses intensive livestock and poultry breeding manure as the main component of the processing of bio-organic fertilizers; Bio-organic fertilizer made of urban and rural municipal solid waste as the main component; The bio-organic fertilizer is made of eco-safe organic materials as the main components and is processed without any chemical synthetic substances. The overall production and processing process of various commercial biological fertilizers mainly includes: grinding, stirring, fermentation, deodorization, dehydration, grinding, granulation, drying, and the whole process takes about 1 month to complete. At present, the amount of organic substances (manure, straw, green manure, cake fertilizer) from agriculture every year is about 4 billion tons, in which straw accounts for 12.2% of the amount of resources, manure accounted for 78.7% of the amount of resources, from the overall amount of biological fertilizer resources, livestock and poultry manure and crop straw is the most important biological fertilizer resources.