Belmont (19-10, 11-5), which has won four straight games, leads the Ohio Valley Conference East standings going into the conference tournament set to begin March 4.
Taylor Barnette was also sharp from beyond the arc, making 4 of 8 as Belmont nailed 15 of 32 from distance. Barnette finished with 12 points, Amanze Egekeze chipped in 10 and Evan Bradds added nine with nine rebounds for the Bruins.
Belmont never trailed, jumping to a 50-28 lead at the half and was ahead 75-52 with 5:53 left in the game.
The Bruins made 33 of 61 from the floor while limiting Tennessee State to 24-of-57 shooting.