在给出公共安全系统性定义的基础上提出了公共安全综合指数的概念，讨论了不确定性的特点和系 统非优分析的方法，同时建立了公共安全运行体系。基于安全指数给出了公共安全控制能力指数，并且讨论了 不确定因素的分析方法。研究表明，公共安全科技贡献率是科技发展战略研究的关键，建立了科技投入与公共安全目标函数，并且讨论了科技贡献增长率的投入产出关系。

On the basis of providing the definition of public security system, this paper puts forward the concept of public security comprehensive index, discusses the characteristics of uncertainty and the method of system non-optimum analysis, at the same time, it establishes the running system of public security. Based on the security index, it provides the index of public security control ability and discusses the analysis method of uncertain factor. Studies have shown that the scientific and technological contribution rate of public security is the key to the scientific and technological strategic research. This paper also sets up the function between science and technology input and public security target, discusses the relationship between input and output of science and technology contribution increase ratio, and finally establishes basic thinking of public security science and technology research system and research planning.

何平（1956－），男，辽宁沈阳市人，辽宁警官高等专科学校教授