What is the national organization responsible for the supervision, inspection and guidance of information security level protection?

It's a public security organ. According to the inquiry of China Travel Service. Com, the public security is mainly responsible for the security protection of computer information systems in non-confidential networks; Secrecy is mainly responsible for the security supervision of classified networks (of course, confidentiality inspection and leak investigation will also involve non-classified networks, but the core of supervision is classified networks); Therefore, the state organ responsible for the supervision, inspection and guidance of information security level protection is the public security organ. The public security organ is the public security organ of the country, and it is an integral part of the people's governments at all levels, that is, the state administrative department, and is responsible for defending the social order of the country and maintaining social order.