Lucky imaging technique is an image post-processing method based on selecting-recentring-coadding of sequence short-exposure images of objects, which can reduce the influence of image quality because of turbulence-induced imaging motion-blur restoration and reduce the resolution loss. The basic theory and flow of the lucky imaging are described and the experimental observation of crescent through atmospheric turbulence is reported. Results show that the lucky imaging technique can improve the imaging resolution of spatial objects through atmospheric turbulence. The image enhancement for lucky imaging results based on wavelet transform is processed. The results after enhancement show that the image enhancement technique can improve the imaging resolution farther and the visual effect.