Grain is the life of all people and the treasure of the country. Food security is a fundamental issue related to human survival. Reducing food loss is an important way to ensure food security. The action plan for grain conservation issued by the office of the CPC Central Committee and the State Council clearly states that by 2025, the measures to reduce grain consumption and losses in all links of the whole grain industry chain will be more hardened, implemented and refined, and more obvious results will be achieved in promoting grain conservation and losses reduction. The system, standard system and monitoring system for grain conservation and losses will be basically established, the normal long-term governance mechanism will be basically sound, and the “CD-ROM action” will be carried out in depth, the problem of food waste will be effectively curbed, and grain conservation Opposing waste has become a common practice in the whole society. We have clear guidelines for action to improve food security, pay equal attention to increasing revenue and reducing expenditure, and increase production and reduce losses.