Agricultural product processing mainly includes grain processing, oil extraction, brewing, sugar making, tea making, flue-cured tobacco, fiber processing and processing of fruits, vegetables, livestock products, aquatic products, etc., which can extend the agricultural industrial chain, increase the added value of agricultural products and increasing farmers' income, and is the "engine" driving the development of modern agriculture.

The patent competitiveness index scores of China's Top 50 institutions in the field of agricultural product processing technology range from 5.42 to 7.43. Hunan Huacheng Biotech, Inc. ranked 38th. The ranking of China's Top 50 patent competitiveness institutions in this field is as follows: