Research on precision and moderate processing of rice and wheat is an effective approach to grain saving and loss reduction, ensure food supply security, safeguard "China's rice bowl" and promote "Healthy China 2030". At present, the precision and moderate processing technology of rice and wheat still faces challenges in balancing taste, nutrition and safety. The development of industrialization is restricted by the conflict between the moderate processing accuracy and market demand, the contradiction between the shelf life of moderately processed products and the purchasing experience of consumers, and the conflict between the balance relationship of the product yield and the cost of enterprise input equipment. Therefore, it is recommended to strengthen the research and development of relevant core technologies and equipment, in-depth science popularization and consumption advocacy, improve the financial compensation policy. Through these multi-end joint efforts, it is possible to improve quality, reduce cost and increase efficiency, enhance consumption drive and enterprise enthusiasm, significantly improve the utilization efficiency of grain resources in the three aspects of quantity, quality and health, facilitate grain saving and loss reduction, and promote industrial upgrading.