Abstract: The paper analyzed development status of heterogeneous system of coal enterprises, indicated existed problems of current information integrated methods: data warehouse method has bad real-time performance for data synchronization; middle-ware method has strong dependence for network and low query efficiency; comprehensive integrated method has strong dependence for middle-ware and high construction cost. So it proposed an integrated model of heterogeneous system of coal enterprises, gave design goal based on real-time performance, safety, consistency and integrity, expansibility of the model, introduced general framework and data flow of the model in details. The actual application shows that the model can meet requirements of integrated platform of heterogeneous system of coal enterprises.