Will Grigg was on fine form as he fired the visitors ahead within first five minutes, an unfortunate own goal doubled Wigan's lead, but in the second half Bournemouth found their form.
CHERRIES defender Steve Cook headed a stoppage time equaliser to earn a replay in a sensational ending to the game.
Seconds earlier Wigan assistant manager Leam Richardson was sent off by referee Andrew Mackey, after he turned down their penalty claim when Adam Smith appeared to push substitute Ivan Toney as he was about to score.
Eddie Howe didn't field his strongest team, which he may now live to regret.
Two goals from Wigan before the end of the first-half set the tone for the game.
It took Bournemouth until the 92nd minute to pull it back as Steve Cook kept their FA Cup campaign alive.
League One leaders Wigan stunned the Cherries during their first meaningful attack at the Vitality Stadium.
And Will Grigg was certainly on fire when he put the visitors ahead after a 5mere 146 seconds.
Former Manchester United youngster Powell celebrated a second Latics goal when his 29th minute free-kick hit Emerson Hyndman in the wall and looped into his own net.
In the second half Bournemouth looked to have found their form.
Lys Mousset fired the ball into the top right corner, from the right side of the goal, at 55 minutes.
Just four minutes later his second right-footed shot, this time from the centre of the box, was blocked.
