Abstract: Organic water-soluble fertilizer is one of the key areas in the development of New Fertilizers. It has the characteristics of good solubility, quick effect and high utilization rate. It can be used for foliar spraying and integrated application of water and fertilizer, and has great development potential in agricultural production. However, the registration of organic water-soluble fertilizers in China needs to meet the requirements of relevant laws and regulations of China fertilizer registration. Definition Organic water-soluble fertilizer is a new type of water-soluble, highly concentrated, multi-functional and nutritious fertilizer product, which is produced by extracting organic water-soluble raw materials (such as flavonoids, amino acids, alginate, sugar alcohols, chitin, sugars, organic acids, etc.) from organic waste materials after treatment, and could be compounded with macro-elements, medium elements or trace elements. Features 1) Basing on organic nutrients, having various forms, fast fertilizer efficiency and high fertilizer efficiency utilization rate; 2) Having…