It happened around 7:30 Tuesday night on the 6200 block of Kindred Street.
The deliveryman's car still had its flashers on when police arrived on the scene.
Officers found the victim, a man in his 60s, with a gunshot wound to the chest, pleading for help.
He was able to tell police that he arrived to make a delivery.
The location turned out to be a vacant home where three men, one armed with a shotgun, were waiting for him.
"We believe this property was a location to lure a Chinese store deliveryman. That's where they committed this robbery and for some reason shot this individual," said Chief Inspector Scott Small, Philadelphia Police.
Police say the victim works for Panda Chinese takeout restaurant on the 6700 block of Bustleton Avenue.
A neighboring businessman was stunned to hear what happened.
"He's my neighbor. He's a great neighbor. We worked for 15 years here, he's a great neighbor. We've never had a problem with him, he's a beautiful guy. You surprised me with this news," said Mundher Raja.
Meanwhile the deliveryman was rushed to Albert Einstein Medical Center in critical condition. No word on his condition.