With the rapid development of the pharmaceutical industry, while bringing huge economic benefits, the discharge of medicine residues is also increasing year by year. It is estimated that Chinese medicine companies consume millions of tons of plant medicinal materials every year, and the resulting plant medicines slag is up to several tens of millions of tons (water content). Medicine residues are wastes generated during the processing and processing of medicinal materials, the production of Chinese patent medicines, and the production and processing of other Chinese medicine-related products. Among them, Chinese medicines produce more medicine residues, accounting for 70% of the total. Early medical residue treatment mainly used landfill, incineration, stacking, etc. These methods not only occupy a lot of land, but also cause serious environmental pollution and huge waste of resources. Therefore, the rational application of medicine residues can not only reduce the waste of resources, improve the utilization rate of medicine residues, and improve the living environment, but also have important significance for the virtuous cycle development of the industry. The preparation of bio-organic fertilizer with medicinal residue as raw material is of great significance to realize a resource-saving and environment-friendly society.

Based on the current status of fertilizer use and agricultural wastes, actively seeking efficient and environmentally friendly fertilizer replacements and exploring ways to utilize agricultural (including pharmaceutical products) waste resources have become the focus of agricultural research at home and abroad. First of all, the application of bio-organic fertilizer is an important way to improve the basic soil fertility and improve the quality of agricultural products. The application of bio-organic fertilizer can not only improve the physical and chemical properties of the soil, improve fertility, increase soil microbial activity, improve and optimize plant yield and quality, but also reduce the application of inorganic fertilizers, fundamentally improve the quality of agricultural products, in line with sustainable development and environmental protection idea. Secondly, the production of bio-organic fertilizer is an important means of agricultural waste resource utilization. Agricultural waste is rich in nutrients and organic nutrients necessary for the growth of crops, and it is used as a bio-organic fertilizer. The organic matter is mineralized, humified and harmless through the action of microorganisms for the absorption and utilization of crops Not only can alleviate the pressure of agricultural waste on the environment, but also can turn waste into treasure and obtain considerable economic benefits.