Owing to many different types of archival disasters,the process of the occurrence,the development,and the evolution is very complex,so in the research of archival disasters,it can not simply be viewed in isolation,and it is necessary to analyze and understand archival disasters from the viewpoint of system theory. Based on what considered above,this article mainly focuses on the view of system theory,and recognizes archival disasters from following four angles of integrity,connectivity,hierarchy and optimization,and ultimately builds archival disasters systems and provides references for archival disaster research.