Joao Lourenço has said that he would also tackle the gaping inequality in Africa's second largest oil producer.
In a 45-minute speech, Lourenço said he would strive to bring in reforms covering gender equality, the freedom of the press, private enterprise and public health.
Following an election last month, former defence minister Joao Lourenco was sworn in to office.
Former president Jose Eduardo dos Santos remains head of the the ruling Popular Movement for the Liberation of Angola (MPLA) party, giving the veteran leader influence over key policy decisions.
Lourenco did not win a presidential election, but became president when the MPLA won the majority of seats in parliament. A constitutional change in 2010 ended direct presidential elections. (ANI)