About 1,200 officers who work the evening shifts around the city will get the cameras starting at the end of the month.
The pilot programme was ordered by a judge following a 2013 ruling that officers were wrongly targeting black and Hispanic men with its stop-and-frisk program. At the time, few police departments used body cameras.
Both officers and citizens have said cameras could help de-escalate situations that lead to violence.
The NYPD's deployment had been on hold following a lengthy process to choose the camera company and storage and questions on how they would work.
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The department sought public comment through a questionnaire and worked with New York University's Policing Project to analyze the results. Some 25,000 people, plus 5,000 police officers, responded anonymously, and NYPD officials made changes based on the outcome.
"I think this shows that the public can have a voice in policing," said Barry Friedman of NYU's Policing Project. One change based on the results was to alert civilians they are being recorded.
"New Yorkers ... Really want to be told they're being recorded," assistant deputy commissioner Nancy Hoppock said. "And officers really don't want to tell them."
Police won't record every interaction even though the public would prefer it because there's not enough storage capability and it would bump up against privacy laws and could stop witnesses from coming forward.
They won't record demonstrations unless there is a crime or other enforcement. The tapes will be kept for a year and the footage released publicly only in certain cases.