The production line uses various grains such as rice, corn, and beans as raw materials. After extruding, drying, crushing, and mixing, various nutrient powders such as infant rice flour, Sesame paste, and bean flour can be produced. The production line automatically completes the process from the feed, the operation is simple, there is no dust leakage, and the hygiene and energy conservation. It can be easily matched with various raw materials and nutrients.