Abstract:Generally, the integration of the network involves not only the technical aspects, but also the organization structure, the management and human factors,etc. Therefore, the integration is of great risk. Having considering this, this paper, based on the analysis of the risk characteristics of network systems integration and the senior experiences, established the risk index system of Network System Integration. Taking the network integration project of someone power enterprise in Beijing as an example, the article detailed the risk assessment model which is based on the multi-level Fuzzy and put forward some reasonable advice for team building according to the risk level so as to provide guidance for the successful completion of the project.