Abstract: Since the implementation of the freight reform, Harbin Railway Administration has actively introduced electric coal "just in time" transport mode, formed integrated supply chain management, and achieved win-win cooperation. In order to provide better service for the users of the power plant and coal enterprise, Harbin Railway Administration used the information technology to design and develop the Just-In-Time(JIT) service system for power plant. The system was designed by BlazeDS framework, safely accessed by railway computer security platform through the Internet. It achieved the goal that the system reduced the cost of enterprise production and improved the income to Harbin Railway Administration.