Abstract: The high-speed railway passenger transportation dispatching plan is closely related to train seat management. In order to solve the problems of poor information exchange and low job collaboration caused by the independent construction of the passenger transportation system and dispatching system, and ensure the accurate matching of transportation resources and travel needs, this paper proposed an automatic interaction scheme between the high-speed railway passenger transportation dispatching plan and seat management. Through digital management of production information, research on automated execution mode of dispatching commands, and technical means such as security card control of operation plans, the paper designed automatic interactive applications including plan issuance, command execution, automatic seat adjustment, and execution feedback, implemented process integration, data fusion, and professional collaboration between the upper and lower processes of dispatching and ticket business domains, which ensured the safety and timeliness of train seat adjustment and train operation plan adjustment, and provided support for adapting to the development requirements of continuously improving service quality and level in high-speed railway passenger transportation operations in market competition.