Abstract: Aiming at the problems of high manual dependence, prominent information islands, low vehicle access efficiency and long vehicle dwelling time in gate inspection of traditional railway logistics yards, this paper designed a digital gate inspection system for railway logistics yards, described its hardware composition, overall architecture and operation flow, and deeply investigated the key technologies of container number recognition and container damage recognition. The system has been deployed and applied across all 18 China Railway Group Co., Lid. The container number recognition accuracy exceeds 99%. It effectively improves vehicle passing efficiency, optimizes loading and unloading workflows, reduces labor costs, realizes data sharing, significantly shortens vehicle dwelling time in yards, and provides technical support for the digital construction of railway logistics yards.