Through the collection and collation of latest information and relevant standards about Cereals, Oils and their products, the general situation of International Standardization Organization (ISO) standard system were introduced in this paper, and the classification, status quo, characteristic distribution and latest development trend of oil seed, fruit and oilseed meal, grain and beans, animal and vegetable oil standards in ISO grain and oil standard system were also introduced and analyzed systematically. The analysis results showed that the framework structure of ISO grain and oil standard is reasonable, the standard system is perfect, the emphasis is on food quality and safety, and the management standard, comprehensive standard and safety standard will be the future focus of ISO. Based on the situation of China’s grain and oil standard system, this paper proposed to improve the international influence of China’s grain and oil standard from the aspects of expanding the coverage of the standard, standardizing the management of making and revising scientific standards, and introducing new science and technology. Therefore, understanding and adopting ISO standard and formulating grain and oil standards in line with the international standards are conducive to further improving the construction of China’s grain and oil standard system.