This paper makes a scientific clarification about grain and food security and a detailed introduction about evaluation methodology of food security situation developed by the Food and Agriculture Organization (FAO) and Economic Research Bureau of USDA.

• 本文对粮食安全的概念进行了梳理,全面介绍了联合国粮农组织和美国农业部的粮食安全评价指标体系和评价结果,对国内已有的研究成果进行了客观、具体的评价。