Objective To realize the integration of PACS and HIS. Methods Powerbuilder was used in designing the electronic application system. Synchronization of PACS and HIS were accomplished by Oracle stored procedures. Results The integration of PACS and HIS were implemented successfully in Xijing Hospital and satisfied results were achieved. Conclusion The successfully integration of diverse systems should be based on the circumstance of hospital,led by information department,and discussed and demonstrated by relative departments. At the same time,the principal of high availability and low dependence among diverse systems should be followed. The alternate periods of old and new work flows should be decreased on the basis of practical software and reasonable procedure.