The traditional “delay and sum” algorithm utilizes the extraction of signal amplitude features for location and imaging of the damage,but this method has the problem of low SNR and low location accuracy.An improved MVDR(minimum variance distortionless response) imaging method was put forward based on laser vibrometer.The proposed method introduced a pre-designed unite column vector to improve the discernibility of damage location.Experimental results show that the algorithm can locate the damage and get two-dimensional images of damage fast and efficiently.