The construction of efficient grain purchasing and storage system is the basis for improving China’s grain purchasing and storage regulation capacity as well as ensuring food security. This paper points out the development trend of grain purchasing and storage in the new era by analyzing the existing situation and problems of grain purchasing and storage in China. Combining the new requirements of China’s grain reserves and aiming for the purpose of “improving environment, conserving resources, enhancing scientific management, advancing technology, beautifying grain storage, increasing benefi”, we also propose the efficient purchasing, storage and management mode of grain, namely the “1+5” standardized purchasing and storage model. The model includes a “three-in- one” grain post-harvest service system of establishing high-quality grain source bases, providing “five generations” services and providing information services, and 5 purchasing and storage key points of the creation a functionally reasonable purchasing and storage layout, the whole-process bulk grain logistics, the environmental-friendly and efficient storage and exit systems, green modern grain storage, and standardized management of purchasing and storage. This study aims to effectively promote the modernization of purchasing and storage, providing reference for the high quality development of grain purchasing and storage in the new era.