关键词: 网络安全，量化评估，数据融合

Abstract: Now making a quantified analysis on the whole situation of the network security is the important means for solving the network security alarm and prevention. Through the analysis on the network security qualification process,this paper proposed the function structure of the network security quantification system,analyzed the related quantification technology, and gave the related function implementation.

Key words: Network security,Quantification evaluation,Data fusion