Abstract:The information of critical infrastructure is developing rapidly, the attacks from internet and other networks have been sharply increased. Information security regulations for critical infrastructure in the United States mainly include critical infrastructure definition, the establishment of institutions, the implementation of the responsibility, the cooperation of government enterprises, the mechanism of information sharing, the relevant policies and regulations. are both changing and continuing. On the whole, there are macro level national policies, in detail, there are micro level control laws, as well as imports of critical infrastructure information security protection. This paper summarizes the characteristics of information security regulations for critical infrastructure in the United States, which is a good reference for our country.