The KVS-G series grain quality analyzer consists of modules such as visual system and software system. When grains enter the camera’s field of view, they are photographed. The characteristics of a complete grain are comprehensively obtained by registration algorithms. AI algorithms are used for attribute recognition to determine whether there are problems such as disease spots, mold, germination, damage, and insect erosion. This enables online detection of grains and creates products of different grades and prices. This grain quality analyzing and grading machine can realize the precision marketing for enterprise.