He was the minister of foreign affairs of Benin from 1998 to 2003 and the President of the National Assembly from 2003 to 2007.
Under President Mathieu Kérékou, Kolawolé served as Minister of Foreign Affairs from May 1998 to May 2003, when he resigned.
In the March 2003 parliamentary election, his party, the African Movement for Development and Progress (MADEP), participated in the Presidential Movement, which supported Kérékou, and Kolawolé was elected as President of the National Assembly on April 25, 2003.
[5] He was re-elected to the National Assembly in the March 2007 parliamentary election as part of the Alliance for a Dynamic Democracy.
[6] Mathurin Nago was elected by the National Assembly to succeed Kolawolé as its President on May 3, 2007.