In the People's Republic of China, a system of state secrets () governs classified information. While only the government can formally classify materials, sensitive matters of the Chinese Communist Party (CCP) are also protected. State secrets are divided into three main categories (in descending order of sensitivity): Top Secret, Highly Secret, and Secret. Each label confers distinct handling and access control requirements consistent with the level of sensitivity. The practices of state secrecy are enforced by the National Administration of State Secrets Protection / CCP Central Secrecy Commission and governed primarily by the Law on the Protection of State Secrets. A 2024 revision of the law codified an additional broad classification category called "work secret." While the legislation offers a robust framework for classification management, some question the authority of China's formal classification policy, arguing that the party-state often applies classification arbitrarily as an ad-hoc tool to suppress politically inconvenient information.
Work Secret (, ) is a category of classification distinguishing information that is not an official state secret, but "will cause certain adverse effects if leaked." Introduced in 2024, it may be analogous to a "sensitive but unclassified" designation, but with expansive, poorly defined authorities. International law firm WilmerHale describes the new law as "not clear" and "vulnerable to being subject to arbitrary, inconsistent or expansive interpretation". According to The New York Times, it makes the definition of state secret "so broad that it could include anything that the party-state decides it should." Ryan Mitchell of the University of Hong Kong Law School told Reuters the change was likely intended to cover information regarding the organizational structure and decision-making hierarchy of state institutions.
Article 13 of the Law on the Protection of State Secrets (2024) describes state secrets as:
Matters of the Communist Party that meet these categories are also state secrets under Article 13.
By default, the classification period for state secrets is 30 years for top secret information, 20 years for secret information, and 10 years for confidential information, after which each is supposed to be reviewed for declassification.
Article 28 of the Law on the Protection of State Secrets (2024) proscribes the following as criminal offenses under the Criminal Law of the People's Republic of China:
Classification legislation in China began with the Interim Regulations on the Protection of State Secrets, approved by Chairman Mao Zedong on June 7, 1951. The interim regulation was abolished on September 5, 1988, replaced by the new Law on Guarding State Secrets, which was finalized by President Yang Shangkun through Presidential Decree No. 6. The law was amended 25 years later, when the Standing Committee of the 11th National People's Congress introduced revisions which went into force October 1, 2010. The current version of the law was introduced by the Standing Committee of the 14th National People's Congress on February 27, 2024, as the law's second revision. It was adopted and went into effect May 1, 2024.