Objective To investigate the repairing methods of severe electrical burns of the knees. Methods 10pateints with severe electrical burns of the knees were enrolled in this study. After local debridement, gastrocnemius flap and netskin graft immediately. Results The entire flap survived very well with satisfactory results. Conclusion Early debridementfollowed by gastrocnemius flap and net skin graft could be simple, safe and reliable treatment strategies in the patients withsevere electrical burns of the knees.