Abstract: As a fast and economical mode of transport, the railway-river combined transport can bring chances to develop the railway freight transport in the port. Based on the aim to open data channel of railway and port, develop railway-river combined transport, through using EDI message processing technology, the data was transmitted and processed on the data platform in the industry level, provincial level to municipal level, at the same time, combined with the structure and function of railway existing information systems, multiple types of data message were extracted an ordered respectively from TMIS, freight electronic commerce system to meet the data needs of railway departments and ports, provide railway platform data for the target to the terminal user of the port, promote the development of the railway-river combined transport based on the implementation of data exchange.