The Ghana international joined Eddie Howe's side on loan in the 2015/16 season while he was a Chelsea player, but the move failed to work out at he made just two appearances at the Vitality Stadium.
The winger put that down to bad luck as he was suffering with injury, while Bournemouth were going well and Howe did not want to tinker with his side too much.
Atsu is now a prominent figure in the Magpies side and holds no grudges against Howe and the Cherries in general.
"I have nothing to prove to Bournemouth," Atsu told club website. "I was unlucky, I had a lot of injuries while I was at Bournemouth and the team was also doing well so it was difficult for the manager to change the squad.
"So the blame is not on anybody, that is how football is. I am just working hard now and trying to focus on Newcastle."
The Magpies sit ninth in the Premier League table heading into the game but Atsu says they are not getting carried away with their position.
"I think we are working hard, the table for us is not important, we just try to focus on each and every game and try our best to win and also improve as a squad," he added.