粮食安全问题既是一个经济问题，更是一个重要的社会问题。确保国家食物安全，需要准确地研判未来食物供需趋势的变化，全程贯穿大食物观、全产业链和新绿色化三大发展的要求，划定食物安全基准和资源利用红线，区分进口类别和优先序，制订明确的发展目标，强化基础支撑和科技保障。本文基于国家未来食物安全可持续发展的战略构想，提出了确保谷物基本自给是我国粮食安全的核心战略，加快实施十亿亩(1亩≈666.67m2)高标准农田建设重大工程，创新经营方式、培育新型农业经营主体；完善法律法规标准、推进现代农业发展进程等政策建议。

Food security is not only an economic issue, but also an important social issue. To ensure national food security, China has to study and evaluate correctly changes in supply and demand in the future; carry out the three development requirements of Great Food View, full industry chain and new greening; draw the alerting line for food security standards and resource utilization; differentiate importing categories and the order of priority; set clear development goals and enhance basic support and technical support. Based on the strategic concept of sustainable development of food security in the future, the paper proposes policy suggestions including setting the core strategy of being basically self-sufficient in grain, speeding up the implementation of the major project of building 1 billion mu of high standard farmlands, carrying out creative operation modes and cultivating the new type of agricultural business entities, improving laws and regulations, promoting the development process of modern agriculture, etc.