This paper introduces the reasons of noise causing collection by electrooptical infrared imaging which interferenced by multispectral infrared bomb.It uses the iterative blind deconvolution in frequency domain to restore the image when the PSF is unknown.This paper properly improved the method of the image restoration based on the characteristics of infrared smoke interference images.The experiment proves that the methods of this paper have good effects of image restoring,it effectively avoided the blurring of images when wiping off the noises.Also it makes the regions of smoke screen for images to be enhanced.