The Bucks are jostling for playoff position and entered the game tied for fifth with Miami in the Eastern Conference. They've won four straight games and have remained in the hunt for the No. 5 seed even without injured center Andrew Bogut.
The Bucks led wire-to-wire against the woeful Sixers and have held three straight teams to 90 or fewer points. Brandon Jennings had 16 points and seven assists.
Andre Iguodala led the Sixers with 21 points. Philadelphia missed 11-of-20 attempts from the free throw line.
John Salmons, who has been a surprise star for the Bucks since his trade from Chicago, played only 24 minutes because of the flu. He scoring touch would have been handy in the fourth quarter when the hapless Sixers started to make a run and nearly played spoiler in the playoff race.
The Sixers sliced the lead to under five several times, but couldn't sustain the big buckets long enough to ever take the lead.
Jrue Holiday, who was 0 for 8 in the first half, nailed a 3-pointer with 19 seconds left that cut it to 89-87.
Jennings did what the Sixers failed to do - make free throws. He calmly sank two in a tight game late in the fourth, much like the rookie might be asked to do in a decisive playoff game.
Iguodala, suddenly playing some of his best basketball of the season long after any of the games matter, hit his third 3 and there was still a glimmer of hope for lottery-bound Philadelphia.
It didn't last long. The Bucks clinched the win from the foul line and then it was off to the locker room to wait for word on the Detroit at Miami game. A Heat loss would put the Bucks in fifth.
Unlike the Sixers, Milwaukee thrived from the line, going 21 for 23.
Bucks coach Scott Skiles stumped for Jennings' candidacy for rookie of the year before the game. His criteria was simple: Jennings was having the best season of any rookie leading his team to the playoffs. This wasn't one of his stronger games - only 4 for 17 - but all those free throws down the stretch helped the Bucks hang on.
The Bucks rolled to a 13-point lead in the first half because the Sixers simply couldn't hit shots. Holiday missed all eight attempts, Willie Green was 0 for 3 and Elton Brand 1 for 5.
NOTES: Milwaukee's Royal Ivey and Primoz Brezec started the season with the 76ers. They were part of a trade that sent Francisco Elson to Philadelphia. Elson made his season debut with the Sixers and scored two points. The Sixers also acquired Jodie Meeks in that Feb. 16 deal, and he scored 11 points in 22 minutes.
