In order to resolve the problem of the heterogeneous integration of digital-printing data in network environment, on the basis of analysis digital-printing data characteristics, an overall framework of heterogeneous digital-printing data integration system is put forward in this paper. After the methods of framework development being studied, the implementation process of heterogeneous data access and extraction are mainly discussed. Finally, the virtual data center and query engine of integration system is studied, and an effective solution is provided in order to realize transparent access to data between the chains or the business sectors in digital-printing company.