国家安全是国家生存发展的首要条件,维护国家安全是国家的头等大事,国家安全立法是国家安全的基本保障。以专门立法的方式维护国家安全,是世界各国的通行做法。美国是较早制定《国家安全法》的国家,早在1947年就通过了《国家安全法》,确立了美国维护国家安全的组织体系和职责权限, National security is the primary condition for the survival and development of a country. Maintaining national security is a top priority for the country. National security legislation is the basic guarantee for national security. To safeguard national security by means of special legislation is the common practice of all countries in the world. The United States, which earlier formulated the National Security Law, passed the National Security Law as early as 1947 and established the organizational structure and responsibilities of the United States in safeguarding national security.