A sectioned restoration algorithm for images with space-variant point spread function and the according splicing method are introduced. Firstly, the blurred image is divided to sub-frame sections based on isoplanatic region and extended outward region. Then, the sub-sections are restored by Lucy-Richard algorithm. After removing the boundary regions which contain obvious ringing artifacts, the pixels in the rest of overlapping region between adjacent sections are weight stacked. The weight coefficients are related to the distances between the pixels and the boundary. At last, the sub-frames are spliced together to construct the composite full-image. The method is effective for eliminating the ringing artifacts coupled with sectioned image restoration with space-variant degraded function. It can be used in image restoration of remote-sensing with satellite and aerocraft, and also medical image processing.