The embodiment of the invention relates to the field of image processing, and particularly relates to a laser radar echo image processing method comprising the steps that an original echo waveform diagram is read in; the convolution matrix and the threshold are defined; convolution operation is performed on the convolution matrix and the original echo waveform diagram; the operation result is compared with the threshold, and a new matrix having the same size with that of the original echo waveform diagram is acquired; multiplication operation is performed on the new matrix and the original echo waveform diagram so as to acquire the medium processing waveform diagram; the medium processing waveform diagram is extracted by using the mathematical mean algorithm so as to acquire the space target laser detection echo data; and image restoration is performed on the echo data so as to acquire the target image. The echo image is enabled to be clearer.