This article reviewed the development status and existing problems of the technology, equipment and management mode of multimodal grain logistics in terms of efficient connection and standardized operations, environmental protection and high efficiency, quality assurance and loss reduction, quality control, circulation supervision, and information fusion. It is also proposed the research on technology and equipment for the efficient connection of bulk grain multimodal transportation and environmental protection loss reduction, quality supervision of multimodal transportation of finished grains and intelligent and efficient loading and unloading, quality control of multimodal transportation and integrated quality supervision in the future. The technical development trend of the research on the efficient connection technology system of grain multimodal transportation based on the national comprehensive three-dimensional transportation network was carried out, and the innovative direction of the research on related technologies, equipment, andmanagement models was also suggested.