The 1983 "Strike Hard" Anti-crime Campaign, also known as the "Stern Blow" Anti-crime Campaign of 1983, was an anti-crime campaign initiated by China's former paramount leader, Deng Xiaoping. Beginning in September 1983, the campaign lasted for three years and five months and was launched largely in response to the nationwide deterioration of public safety resulting from the breakdown of social order and the public security system following the Cultural Revolution. During this time, crimes such as rape, murder, robbery, and arson occurred on a massive scale, and even cannibalism took place in some parts of China (Guangxi Massacre, 1967–1968).

During the "three battles" of the "Strike Hard" campaign, some 197,000 criminal groups were targeted, 1.772 million people were arrested, and 1.747 million people were prosecuted, with an estimated 30,000 sentenced to death. Although visible improvements in public safety followed, controversies arose as to whether the punishments were too harsh, and whether the legal processes in many cases were thorough and rigorous.