A 15-year-old girl was critically hurt when she tumbled out of a moving party bus in Queens Wednesday night, cops said.

The teen fell out of the emergency exit while the bus was on the Cross Island Parkway, near North Shore Avenue, around 8:50 p.m., police said.

She landed on the roadway and was knocked unconscious, cops said.

The girl was brought to North Shore University Hospital, where she was listed in critical condition, authorities said.

It appears the fall was accidental.

The teen may have been leaning on the door before she fell, cops said.