Despite a 64-70 points loss to world number 7 and hosts Serbia, Nigeria snatched the ticket with a game to spare.
Mozambique would have qualified if they had beaten the USA with over 30 points but USA humiliated Mozambique by 124 – 49 points a while ago.
D’Tigress play their last game against USA on Sunday February 9.
The Nigeria Basketball Federation has also set a record by being the only federation to present two teams at the 2020 Olympic Games in Tokyo.
D’Tigers have also qualified for the Olympic Games.