Compound artificial rice belongs to the emerging staple food of human beings, which can be divided into functional nutritious rice and fast food instant rice according to product application. Among them, functional nutritious rice is generally produced with grains and cereals compounded according to their nutritional components as raw materials. Common materials include corn, rice, oats, tartary buckwheat, purple potatoes and some beans. Its nutrition is more balanced than that of a single grain; By changing the ratio of raw materials, the content of plant protein, dietary fiber or other nutrient elements in the product can be greatly increased, so as to meet the needs of different groups of people. It is often used as a food therapy product for middle-aged and elderly people, people with three high blood pressure and diabetes; It can also be used as a staple food substitute to supplement the dietary fiber and micronutrients lacking in daily high carbon water and high fat diet. The fast food instant rice mainly uses rice and starch as the main raw materials, and its product focus is on the convenience of eating methods, to meet the needs of people in busy work, epidemic isolation, outdoor travel and other special conditions to quickly solve the problem of eating. This kind of product can be brewed, boiled, or used with self heating package. The compound artificial rice production line adopts twin-screw extrusion process to extrude raw materials and shape them through molds; With the high-speed rotation of twin-screw, the original structure of raw materials at molecular level is broken by using reasonable shear and pressurization structure to ripen raw materials, so that the nutrition of products is more conducive to human absorption, and their eating methods are more diverse and convenient; Its production process is simple, with uninterrupted and continuous operation from raw materials to finished products, without manual operation. The continuous operation time is not less than 72 hours, and there is no waste water or waste material discharged in the whole process; Its main production process includes raw material pretreatment, extrusion granulation, drying, cooling, etc; All equipment in contact with food shall be produced and processed with food grade materials that meet the requirements of food safety production. The whole line shall be customized in design layout. The supporting scheme and workshop layout shall be customized according to the actual needs of customers. The design output varies from 100 kg to thousands of kg.