In 1929, there were three Communist Organizations founded in Vietnam, respectively: Annam Communist Party (July 1929), Indochina Communist Party (September 1929) and Indochina Communist League (December 1929). The introduction of the three communist organizations affirmed the leap forward development of the Vietnamese revolution and proved that the communist ideology has won the upper hand in the nationalist movement.

However, in the process of operation, the three organizations always competed for influence and attacked against each other. In that context, on October 27, 1929, the Communist International sent a letter to the Indochinese communists requesting to promote the unification of those organizations as a single party in Indochina. Following the directive of the Communist International, the Party organizations had meetings, but due to disagreements, they did not come to a consensus.

In the late autumn of 1929, while doing activities in Thailand, hearing reports about the conflict between Communist Party organizations in Vietnam, as authorized by the Communist International, Nguyen Ai Quoc returned to Hong Kong, convening a Conference of Delegates of Communist Organizations to get agreement on the organization and establishment of the Communist Party of Vietnam.

On February 3, 1930 on the occasion of the Canh Ngo New Year, the first conference to unite communist organizations in Vietnam was held in a working poor neighborhood in Hong Kong. Nguyen Ai Quoc was the chair of the Conference. Attending the Conference were delegates: Indochina Communist Party (Trinh Dinh Cuu, Nguyen Duc Canh), Annam Communist Party (Chau Van Liem, Nguyen Thieu) and two representatives of overseas party organizations (Le Hong Son, Ho Tung Mau). Representatives of the Indochina Communist League could not attend.

At the conference, Comrade Nguyen Ai Quoc suggested that the delegates forget all old conflicts and prejudices between communist groups, and sincerely cooperate with each other to get unified into a single party.

After discussions, with his prestige and persuasion ability, the Conference agreed on union of the Party under the name of the Communist Party of Vietnam. The Conference accepted and approved the official documents of the Party, including: Brief Outline, Brief Strategy, Brief Charter, etc., drafted by Nguyen Ai Quoc. These documents constituted the first political program of the Communist Party of Vietnam.

The first meeting for unification the three communist organizations, held on February 3, 1930, was essentially the Party Founding Congress and Nguyen Ai Quoc was the founder of the Communist Party of Vietnam. This was a great turning point in our national revolution history. “It proved that our proletariat has matured and is capable of leading the revolution”. At the same time it put an end to the crisis and stalemate over the direction and organization of Vietnam's revolutionary leadership.

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