Manhattan Rep. Carolyn Maloney was hospitalized Monday after she nearly fainted at a vigil for the four homeless men who were slain in Chinatown.

The 73-year-old longtime Democratic congresswoman was talking to reporters at Chinatown’s Kimlau Square — where other pols and homeless advocates were gathered — when she started to faint.

Maloney was escorted to a nearby park bench, where an aide pressed a bottle of Coke to the back of her neck and a reporter for NY1 called 911.

An ambulance came and medics assessed Maloney, who was taken to New York-Presbyterian Hospital, her spokeswoman said.

Maloney was “fine” and was expected to be discharged later Monday, according to the spokeswoman, Jennifer Bell.

Bell said the ambulance was called “out of an abundance of caution.”

“She doesn’t know the meaning of the word rest,” said Bell, noting the congresswoman, who was first elected in 1992, has had a jam-packed schedule. “That’s one of her greatest qualities.”

Maloney’s health scare comes just months before she will face a crowded Democratic primary seeking to push the longtime Manhattan politician from her seat.

Hotel magnate and former Barack Obama campaign staffer Suraj Patel is running once again after losing the 2018 contest for New York’s deep blue 12th congressional district.

Additionally, city budget staffer Erica Vladimer, JP Morgan project manager and comedian Lauren Ashcraft and housing activist Peter Harrison have joined the race.

Later Monday, Maloney revealed she had been sick with bronchitis and should have stayed home resting.

“This morning, I began to feel faint at a public event, and out of an abundance of caution, sought medical attention” the congresswoman said in a statement. “I am recovering from bronchitis, and probably should have stayed home. After some rest and chicken soup, I am looking forward to getting back to work for the people of New York.”