_{從新的角度對構(gòu)建國家預(yù)警系統(tǒng)所基于的理論依據(jù)進(jìn)行了分析，提出了國家安全因素層次以及相互作用的數(shù)學(xué)模型；簡要概述了預(yù)警系統(tǒng)功能與特征；重點(diǎn)介紹了該系統(tǒng)構(gòu)建的方案以及系統(tǒng)運(yùn)行的任務(wù)和時(shí)序，使該系統(tǒng)能適應(yīng)新的國家安全形勢以及國家安全環(huán)境，有效維護(hù)國家安全。
關(guān) 鍵 詞 國家安全; 預(yù)警系統(tǒng); 構(gòu)建; 體系}

_{National security is a foundation which a nation has been existing and developing. Building a national security pre-warning system which bases on new international situations and national security traits is a important measure by which many nations will safeguard national sovereighty and interests. The theory gist the system based on will be analysed from new point of view.The paper will put forward national security factor’s levels and their interactional mathematics model; and will summarize briefly the system’s function and characteristic ; and will show emphases on the building plan and task and list of the system.}