The Chinese Communist Revolution was a social and political revolution that culminated in the establishment of the People's Republic of China (PRC) in 1949. For the preceding century, China had faced escalating social, economic, and political problems as a result of Western imperialism, Japanese imperialism, and the decline of the Qing dynasty. Cyclical famines and an oppressive landlord system kept the large mass of rural peasantry poor and politically disenfranchised. The Chinese Communist Party (CCP) was formed in 1921 by young urban intellectuals inspired by European socialist ideas and the success of the October Revolution in Russia. The CCP originally allied itself with the nationalist Kuomintang (KMT) party against the warlords and foreign imperialist forces, but the 1927 massacre of Communists in Shanghai ordered by Kuomintang leader Chiang Kai-shek forced them into the Chinese Civil War, which would last more than two decades.

In political science, a revolution is a rapid, fundamental transformation of a society's state, class, ethnic or religious structures. A revolution involves the attempted change in political regimes, substantial mass mobilization, and efforts to force change through non-institutionalized means.