Abstract: Aiming at the problem that the damage localization error exists in the Lamb wave passive monitoring method,and the detection result is not intuitive and accurate,a solution for damage localization and imaging for wind turbine blade is proposed that is based on the corrected wave velocity and the distance weighting. The proposed solution assesses the structure of wind turbine blade and studies the revised velocity of shocking response wave demarcating method to the structure of composite material and damage location based on pixel contrast imaging matrix. The provided experiment results demonstrate that compared with traditional passive positioning monitoring, the locating error of the proposed method is smaller and the imaging position is more accurate.