The crash happened around 12:30 a.m. Friday in a construction zone on the northbound Garden State Parkway in Port Republic, New Jersey.
Police say the trooper was rear ended by a Volkswagen Beetle, causing the VW to catch fire.
The trooper suffered minor injuries and was transported to an area hospital to be checked out.
The driver of the striking vehicle was also injured. That person was taken to the hospital in stable condition.
Police are continuing to investigate what led to the crash.