Mrs. Mai served as the secretary of the Communist Youth Union of Ho Chi Minh City and then president of the Vietnam Youth Union. She is the member of the 10th, 11th, 12th Central Committee of the Communist Party and the 10th, 11th, 12th, 13th, 14th National Assembly.
In January, 2016, at the 12th National Congress, she was reelected into the Central Committee of the Communist Party of Vietnam and elected to the Politburo. On February 4th, 2016, she was assigned by the Politburo to join the Secretariat of the Communist Party, hold the position as the head of Central Mass Mobilization Committee Communist Party of Vietnam.
In April, 2004, she was appointed by the Politburo as a member of the Presidium of the Central Committee of the Fatherland Front of Vietnam.
She has a bachelor’s degree in history and law, and a master’s degree in public administration.