Country name | ruling party | Time of existence | remarks |
| | December 22, 1922~December 25, 1991 | Federalism It broke out in Russia in 1917 October Revolution In the late 1980s, the national independence movement rose, and the joined republics were separated Soviet Union , completely disintegrated in 1991 |
| | August 20, 1949~October 23, 1989 | In April 1945, the Soviet Union liberated Hungary, established the socialist regime in August 1949, and passed a constitutional amendment in October 1989, changing the country's name to Republic of Hungary |
| Romanian Communist Party | December 30, 1947~December 28, 1989 | The Soviet Union liberated Romania in 1944, and established the socialist regime in 1947. Violent conflicts broke out in December 1989, and the country was renamed Romania |
| Balgarska Komunisticheska Partiya | September 15, 1946~November 15, 1990 | In September 1944, the Soviet Union liberated Bulgaria, established the socialist regime in 1946, and changed its name to the Republic of Bulgaria in November 1990 |
| | July 21, 1944~December 29, 1989 | In August 1944, the Soviet Union liberated Poland. In 1989, it passed a bill to change the country's name to the Republic of Poland |
| Komunisticka strana Ceskoslovenska | May 9, 1948~March 6, 1990 | The Soviet Union liberated Czechoslovakia in May 1945, which took place in November 1989“ velvet revolution ”In March 1990, it was renamed the Czechoslovak Federal Republic |
| | October 7, 1949~October 3, 1990 | The Soviet Union captured Berlin in May 1945, established the Berlin Wall in 1961, collapsed the Berlin Wall in 1989, and was incorporated into the Federal Republic of Germany in October 1990 |
| | January 11, 1946~April 1, 1991 | It was liberated by the Communist Party and nationalist forces in November 1944, and was renamed the Republic of Albania through the constitutional amendment in April 1991 |
| | November 29, 1945~April 27, 1992 | In 1945, the Axis countries withdrew from Yugoslavia, in 1948, they became hostile to the Soviet Union, and in 1992, they collapsed due to the withdrawal of Croatia and Slovenia |
| | November 26, 1924~February 12, 1992 | Supported by the Soviet Union in 1924, it was overthrown Bokdo Khanate 。 In 1946, China recognized independence and changed its name to Mongolia in 1992 |
| | August 14, 1921~October 13, 1944 | Supported by Russia in 1921, internal affairs were controlled by the Soviet Union since the 1930s, and it was incorporated into the Soviet Union in 1944 |
| | November 30, 1967~May 22, 1990 | |
| | January 5, 1976~January 7, 1979 January 10, 1979~October 24, 1993 | In 1979, Vietnam invaded, the Cambodian Communist Party withdrew from the mainland and established the Democratic Kampuchea coalition government. Vietnam supported People's Republic of Kampuchea ( Puppet regime )。 Vietnam withdrew its troops in 1989, and the Kingdom of Cambodia was established in 1993 |
| | April 29, 1978~April 28, 1992 | It was founded with the support of the Soviet Union in 1978, invaded Afghanistan in 1979, and was pro Soviet in 1992 Najibulla Fall down and change the country's name to Islamic State of Afghanistan |
| | September 21, 1974~May 28, 1991 | In 1974, the military coup came to power. In 1984, the socialist regime was established. In 1991, it was renamed the Federal Democratic Republic of Ethiopia |
| | October 30, 1975~March 1, 1990 | In 1972, the People's Revolutionary Party came to power through a coup and was renamed the Republic of Benin in March 1990 |
| | November 11, 1975~January 21, 1992 | Supported by the Soviet Union and Cuba, the multi-party system was implemented in 1991 and the country was renamed the Republic of Angola in 1992 |
| | December 1968~June 10, 1991 | The first socialist country in Africa gave up Marxism Leninism in 1990 and changed its name to the Republic of Congo in 1991 |
| | June 25, 1975~November 11, 1990 | In November 1990, it changed to a multi-party system and was renamed the Republic of Mozambique |
| | October 1969~February 1, 1991 | In January 1991, it was violently overthrown and renamed the Republic of Somalia |
Hungarian Soviet Republic | Hungarian Communist Party | March 21, 1919~August 6, 1919 | Dissolved due to Romania's capture of Budapest |
| Communist Party, Independent Social Democratic Party | April 13, 1919~May 3, 1919 | Republic established for the Bavarian Independent Social Democratic Party |
| - | June 16, 1919~July 7, 1919 | He was strangled by the bourgeois regime of Czechoslovakia on July 7, 1919. |