国家安全是由政治安全、军事安全、经济安全、生态安全、科技安全等要素构成的复杂系统。构成国家安全系统的各要素之间的关系是由该系统的环境和系统行为所追求的目标决定的。国家安全在冷战前和冷战后分别经历了以军事安全、经济安全为主的分化后,当前形成了以科技安全为中心、科技安全与其它安全要素相互渗透的综合化趋势。 National security is a complex system of elements such as political security, military security, economic security, ecological security and technological security. The relationship between the elements that make up the national security system is determined by the goals pursued by the system's environment and systemic behavior. After the pre-Cold War and post-Cold War expatiations, respectively, the national security has undergone the differentiation mainly based on military security and economic security. At present, the trend toward the integration of science and technology with other security elements has taken shape with the focus on science and technology.