Special operations officers could be seen grabbing the unidentified climber into an opened window on the building's 21st floor Wednesday evening.
After he was hauled into the window onlookers gathered on the streets below the Fifth Avenue tower cheered.
Police say he's now in custody.
Here are photos showing the climber:
Witnesses say the man started climbing Donald Trump's namesake skyscraper at about 4 p.m. He was wearing a backpack and used suction cups, ropes and a harness to slowly climb the building from an outdoor terrace just a few floors up.
The tower is headquarters to the Republican presidential nominee's campaign and his business empire. He also lives there.
Trump was not in the building.
Police said once in custody, the climber faces charges such as reckless endangerment, criminal trespass and more.