Reform and opening-up (Chinese: 改革开放; pinyin: Gǎigé kāifàng), also known as the Chinese economic reform or Chinese economic miracle, refers to a variety of economic reforms in the People's Republic of China (PRC) that began in the late 20th century, after Mao Zedong's death in 1976.
Guided by Deng Xiaoping, who is often credited as the "General Architect", the reforms were launched by the ruling Chinese Communist Party (CCP) on December 18, 1978 at the third plenary session of the 11th CCP Central Committee, during the Boluan Fanzheng period. In 1979, Deng launched the Four Modernizations, aiming to modernize China's economy. A parallel set of political reforms were launched by Deng and his allies in the 1980s, but ended with the 1989 Tiananmen Square protests and massacre, halting further political liberalization. The economic reforms were revived after Deng Xiaoping's southern tour in 1992. Reform and opening up gradually became the main component of socialism with Chinese characteristics, constituting Deng Xiaoping Theory, and was incorporated into the CCP Constitution in 1997 and written into the Constitution of China in 1999.