Awaken crews battled for some 35 minutes at around 5pm this regular to extinguish the blaze on the hard shoulder between M25/A21 and J2A.
The road has since been reopened and cipher was reported to be injured.
Emergency services closed the M26 near Kemsing as they put out the flames.
A advise fully from the scene showed thick black smoke billowing from the agency.
Drivers were advised to «allow extra time for your peregrination this evening and consider using alternative routes».
Kent A set fire to and Rescue Service said crews were scrambled after they be told reports of a crane alight on the hard shoulder of the M26 on the Kent-bound carriageway.
The burning service said: “Crews used breathing apparatus, hose stumble jets and foam to tackle the fire.
“There were no reported injureds or injuries.”