It happened on the A2 coastbound between Dartford and the M25 at around 12.30am today (December 20).
Officers were called to the scene and found the motorcyclist, a man, injured.
He was taken to a local hospital for treatment where his injuries were assessed as not serious.
Road closures were put in place following the incident but have since been lifted.
A spokesperson for Kent Police said: “At around 12.30am on Wednesday 20 December 2023 a single-vehicle collision occurred on the A2 coastbound between Dartford and the M25.
“A man who had been riding a motorcycle was treated for injuries that are not believed to be serious and taken to a local hospital.”