Abstract: Based on the characteristics that the MAS technology can divide the system into agent with independence and independent function, achieve the higher level system function, the new idea was put forward, which is merging the existing information system and new system developed and constructed in the future, solving the ubiquitous problem of "detached island of information", realizing integration in coal enterprise, by using layered integration tactics and MAS technology; The system integration model with the core models of function agents, workflow agent and production plan optimization and mediation agent was set up; Such technological problems as standardization of agent structure, encapsulation of agent in existence, development of new agent etc. were researched.