During the BIM implementation process, we found that the BIM application more or less will have an impact on the traditional project process. The organizational theory of project management tells us, if diagnosing project management of a construction project, the first is to analyze its organization and processes, because the processes reflect the the dynamic logical relationship of the various tasks of the project organization. This article is intended to investigate BIM application and its improvement of project organizational process, which is to provide a reference for BIM implementation planning.