In a speech as he took office, he said “I will not let the good people of Ghana down.
“I pledge to do my best to move this country to higher level of development; I will not let the good people of Ghana down.
“We should move on to deepen our democracy.”
The new President, 72 also promised to work with Ghana's neighbours “to ensure stability on the African continent.”
Addo, a lawyer who served as Ghana's foreign minister in 2008, vowed to build on the West African country's economic success.
Ghana's september election saw Akufo-Addo which got 53.85 per cent of the votes defeat incumbent John Mahama who got 44 per cent of the votes.
Report says the peaceful transfer of power from ex-president Mahama was drawing special attention.
Some of his African counterpart join him in the ceremony, About Fourteen African heads of state including Nigeria's President Muhammadu Buhari and Kenyan President Uhuru Kenyatta was at the event in Accra.