In order to restore the blurred image to obtain the cognizable target,we analyzed two kinds of blur characters,which produced by the high speed relative motion between camera and target. For the question that the degraded function of whole degradation process was difficult to ascertain,we proposed a method of mutual layered restoration based on image interpolation. First,the method improves the analysis ability of low resolution images through image interpolation. And then we chose the optimal parameter combination of the two degradation functions mutually under the optimization rule of mean squared error. The layered restoration could be implemented with the two degradation functions of blurred image. We restored the image and obtained the main characters of the target image in simulation experiment. The result shows that the method is effective.