With the rapid development of wind power technology,the power generation capacity of single machine is increasing and the wind turbine height has been increased to 100 meters.However,the lightning strike risk suffered by the wind turbine also increased.This paper analyzes the mechanisms of lightning strike damage on wind turbine blades,explains the causes and formation of blade damage after lightning strike through examples,and summarizes the characteristics of large turbine blade and environmental factors of wind farm.Some improvements on wind turbine against lightning risk are proposed based on warning data of atmospheric electric field instrument and combined with the latest plasma lightning protection technology.The concept of active lightning protection of wind turbine is proposed,with the purpose to promote development of new lightning protection technology.