Beavogui, a member of the Toma ethnic group,[1] was born in Macenta, located in southern Guinea.

In 1961 he represented Guinea at the 1st Summit of the Non-Aligned Movement in Belgrade, FPR Yugoslavia.

After the Guinean government allowed Kwame Nkrumah, the ousted President of Ghana, to live in exile in Guinea, the authorities in Ghana detained Beavogui at the airport in Accra while he was on his way to Ethiopia for a conference of the Organization of African Unity in October 1966.

[3] At the end of the Ninth Congress of the ruling Democratic Party of Guinea (PDG) on 25 April 1972, President Touré said that Beavogui would become Prime Minister; that position had not previously existed.

Lansana Beavogi spoke at a mourning rally at the Palais du Peuple on March 28, met with many delegations who arrived for the funeral at the airport, read a farewell speech at Sékou Touré's funeral on March 30.