Abstract: Cross-department administrative coordination not only places hopes on straightening out functions and procedures， but also needs the governments to use new technologies to break administrative barriers among departments. Based on the governments' various attempts to promote cross-department administrative coordination， it was suggested that information construction should be a workable solution; however， the goal of administrative coordination is not easy to achieve in that it is restricted by data fragmentation， information island and the traditional administrative system. To promote cross-department administrative coordination， the governments should release data potentials， break departmental barriers and promote process reengineering in terms of data quality， mechanism construction and model development.

Key words: data integration, cross-department administrative coordination, big data