The Central Committee of the Communist Party of the Soviet Union was the highest organ of the Communist Party of the Soviet Union (CPSU) between Congresses. Elected by the Congress, the Central Committee emerged as the core nexus of executive and administrative authority in the party, with de facto supremacy over the government of the Soviet Union. It was composed of full members and candidate (non-voting) members. Real authority was often concentrated in smaller, more agile organs elected by the Committee, namely the Politburo, Secretariat, and Orgburo (dissolved in 1952), as well as in the post of General Secretary. Theoretically a collective leadership, the Committee increasingly became a rubber-stamp institution, particularly from the late 1920s onward under the dominance of Joseph Stalin.

The Central Committee originated in the Russian Social Democratic Labor Party (RSDLP), established in 1898, and continued in the Bolshevik party, established in 1912. After the Bolsheviks seized power in the October Revolution of 1917, the Committee assumed a key leadership role, functioning both as a strategic body and a conduit for implementing party directives in the expanding Soviet state. Stalin used his control over personnel appointments to dominate the Committee and ensure ideological conformity, and during his rule the Committee's composition often reflected factional struggles, purges, and leadership reshufflings. During the Great Purge of 1936 to 1938, a significant portion of its members were executed or imprisoned.

After Stalin's death in 1953, the Central Committee experienced a relative revival as collective leadership attempted to curtail the powers of the General Secretary, playing key roles in the failed attempt to remove Nikita Khrushchev in 1957, and in his removal in 1964. Under Leonid Brezhnev and his successors, the Committee reverted to a more ceremonial function, mirroring the broader bureaucratization of the Soviet system. During the Brezhnev era, the Committee became increasingly vast and unwieldy, consisting of hundreds of full and candidate members, including regional party leaders, military officials, and economic planners. The final years of the Committee were marked by attempts at reform under Mikhail Gorbachev from 1985, which saw it sidelined by the rising influence of state organs and the accelerating disintegration of party control. The Committee was officially disbanded upon the banning of the CPSU in late 1991.

History

Background: 1898–1917

At the founding congress of the Russian Social Democratic Labour Party (the predecessor of the Communist Party of the Soviet Union) Vladimir Lenin was able to gain enough support for the establishment of an all-powerful central organ at the next congress. This central organ was to become the Central Committee, and it had the rights to decide all party issues, with the exception of local ones. The group which supported the establishment of a Central Committee at the 2nd Congress called themselves the Bolsheviks, and the losers (the minority) were given the name Mensheviks by their own leader, Julius Martov. The Central Committee would contain three members, and would supervise the editorial board of Iskra, the party newspaper. The first members of the Central Committee were Gleb Krzhizhanovsky, Friedrich Lengnik and Vladimir Noskov. Throughout its history, the party and the Central Committee were riven by factional infighting and repression by government authorities. Lenin was able to persuade the Central Committee, after a long and heated discussion, to initiate the October Revolution. The majority of the members had been skeptical of initiating the revolution so early, and it was Lenin who was able to persuade them. The motion to carry out a revolution in October 1917 was passed with 10 in favour, and two against by the Central Committee.

Lenin era: 1917–1922

The Central Committee, according to Lenin, was to be the supreme authority of the party. Long before he joined forces with Lenin and became the Soviet military leader, Leon Trotsky had once criticised this view, stating "our rules represent 'organisational nonconfidence' of the party toward its parts, that is, supervision over all local, district, national and other organisations ... the organisation of the party takes place of the party itself; the Central Committee takes the place of the organisation; and finally the dictator takes the place of the Central Committee."

During the first years in power, under Lenin's rule, the Central Committee was the key decision-making body in both practice and theory, and decisions were made through majority votes. For example, the Central Committee voted for or against signing a peace treaty with the Germans between 1917 and 1918 during World War I; the majority voted in favour of peace when Trotsky backed down in 1918. The result of the vote was the Treaty of Brest-Litovsk. During the heated debates in the Central Committee about a possible peace with the Germans, Lenin did not have a majority; both Trotsky and Nikolai Bukharin had more support for their own position than Lenin. Only when Lenin sought a coalition with Trotsky and others, were negotiations with the Germans voted through with a simple majority. Criticism of other officials was allowed during these meetings, for instance, Karl Radek said to Lenin (criticising his position of supporting peace with the Germans), "If there were five hundred courageous men in Petrograd, we would put you in prison." The decision to negotiate peace with the Germans was only reached when Lenin threatened to resign, which in turn led to a temporary coalition between Lenin's supporters and those of Trotsky and others. No sanctions were invoked on the opposition in the Central Committee following the decision.

The system had many faults, and opposition to Lenin and what many saw as his excessive centralisation policies came to the leadership's attention during the 8th Party Congress (March 1919) and the 9th Party Congress (March 1920). At the 9th Party Congress the Democratic Centralists, an opposition faction within the party, accused Lenin and his associates, of creating a Central Committee in which a "small handful of party oligarchs ... was banning those who hold deviant views." Several delegates to the Congress were quite specific in the criticism, one of them accusing Lenin and his associates of making the Ukrainian Soviet Socialist Republic a place of exile for opponents. Lenin reply was evasive, he conceded that faults had been made, but noted that if such policies had in fact been carried out the criticism of him during the 9th Party Congress could not have occurred. During the 10th Party Congress (March 1921) Lenin condemned the Workers Opposition, a faction within the Communist Party, for deviating from communism. Lenin did state that factionalism was allowed, but only allowed before and during Party Congresses when the different sides needed to win votes. Several Central Committee members, who were members of the Workers Opposition, offered their resignation to Lenin but their resignations were not accepted, and they were instead asked to submit to party discipline. The 10th Party Congress also introduced a ban on factionalism within the Communist Party; however, what Lenin considered to be 'platforms', such as the Democratic Centralists and the Workers Opposition, were allowed. Factions, in Lenin's mind, were groups within the Communist Party who subverted party discipline.

Despite the ban on factionalism, the Workers' Opposition continued its open agitation against the policies of the Central Committee, and before the 11th Party Congress (March 1922) the Workers' Opposition made an ill-conceived bid to win support for their position in the Comintern. The Comintern, not unexpectedly, supported the position of the Central Committee. During the 11th Party Congress Alexander Shliapnikov, the leader of the Workers' Opposition, claimed that certain individuals from the Central Committee had threatened him. Lenin's reply was evasive, but he stated that party discipline needed to be strengthened during "a retreat" – the New Economic Policy was introduced at the 10th Party Congress. The 11th Party Congress would prove to be the last congress chaired by Lenin, he suffered one stroke in May 1922, was paralysed by a second in December later that year, was removed from public life in March 1923 and died on 21 January 1924.

Interregnum: 1922–1930

When Lenin died, the Soviet leadership was uncertain how the building of the new, socialist society should proceed. Some supported extending the NEP, as Lenin had suggested late in his life, or ending it and replacing it with a planned economy, a position Lenin held when he initiated NEP. Following Lenin's forced departure due to ill health, a power struggle began, which involved Nikolai Bukharin, Lev Kamenev, Alexei Rykov, Joseph Stalin, Mikhail Tomsky, Leon Trotsky and Grigory Zinoviev. Of these, Trotsky was the most notable one. In his testament, Lenin referred to Trotsky's "exceptional abilities", adding "personally he is perhaps the most able man in the present central committee." Trotsky did face a problem however: he had previously disagreed with Lenin on several matters.

Stalin, the second major contender, and future leader of the Soviet Union, was the least known, and he was not a popular figure with the masses. Even though he was a Georgian, and he opposed Georgian nationalism, he talked like a Slavophile, which was an advantage. The Communist Party was his institutional base; he was the General Secretary – another advantage. But there was a problem; Stalin was known for his brutality. As one Party faithful put it, "A savage man ... a bloody man. You have to have swords like him in a revolution but I don't like that fact, nor like him." In his testament, Lenin said of Stalin:

Stalin is too rude, and this fault, fully tolerable in our midst and in the relations among us Communists, becomes intolerable in the office of General Secretary. Therefore I propose to the comrades that they devise a way of shifting Stalin from this position and appointing to it another man who in all other respects falls on the other side of the scale from Comrade Stalin, namely, more tolerant, more loyal, more polite and considerate of comrades, less capricious and so forth.

Inner-party democracy became an important topic following Lenin's health leave; Trotsky and Zinoviev were its main backers, but Zinoviev later changed his position when he aligned himself with Stalin. Trotsky and Rykov tried to reorganise the party in early 1923, by debureaucratising it, however, in this they failed, and Stalin managed to enlarge the Central Committee. This was opposed by certain leading party members and a week later; the Declaration of the Forty-Six was issued, which condemned Stalin's centralisation policies. The declaration stated that the Politburo, Orgburo and the Secretariat was taking complete control over the party, and it was these bodies which elected the delegates to the Party Congresses – in effect making the executive branch, the Party Congress, a tool of the Soviet leadership. On this issue, Trotsky said, "as this regime becomes consolidated all affairs are concentrated in the hands of a small group, sometimes only of a secretary who appoints, removes, gives the instructions, inflicts the penalties, etc." In many ways Trotsky's argument was valid, but he was overlooking the changes, which were taking place. Under Lenin the party ruled through the government, for instance, the only political office held by Lenin was chairman of the Council of People's Commissars, but following Lenin's health the party took control of government activities. The system before Lenin was forced to leave was similar to that of parliamentary systems where the party cabinet, and not the party leadership, were the actual leaders of the country.