The Politburo Standing Committee (PSC), officially the Standing Committee of the Political Bureau of the Central Committee of the Communist Party of China, is a committee consisting of the top leadership of the Chinese Communist Party (CCP) and the state, as some of its members concurrently hold the most senior positions within the state council. Historically it has been composed of five to eleven members, and currently has seven members. Its officially mandated purpose is to conduct policy discussions and make decisions on major issues when the Politburo, a larger decision-making body, is not in session. According to the party's constitution, the General Secretary of the Central Committee must also be a member of the Politburo Standing Committee.
According to the party's Constitution, the party's Central Committee elects the Politburo Standing Committee. In practice, however, this is only a formality. The method by which membership is determined has evolved over time. In turn, the Politburo chooses the Politburo Standing Committee through secretive negotiations. The Standing Committee functions as the epicenter of the CCP's power and leadership, and its membership has ranged from five to nine people. During the Mao Zedong era, Mao himself selected and expelled members, while during the Deng Xiaoping era consultations among party elders on the Central Advisory Commission determined membership. Since the 1990s, Politburo membership has been determined through deliberations and straw polls by incumbent and retired members of both the Politburo and the Standing Committee.