This course mainly focuses on a technology that uses engineering principles and methods to properly process biological products. Its purpose is to maintain product quality and economic value. Processing methods vary according to product types and needs. This course is aimed at common biological products. Product processing engineering technology is explained separately in terms of engineering analysis and application, mainly including material crushing and granulation, mixing and stirring, sorting and impurity removal, transportation, drying, freezing, refrigeration and storage, etc., which is helpful to understand the problems and methods of processing to reduce direct or indirect losses and increase its final values