The point spread function (PSF) is sensitive to the changes of view field in a wavefront coding system with a wide field of view (FOV),which means that it is difficult to restore the image only using the central PSF as usually do. Image degradation model is established by partitioning the FOV into several blocks where inside each block PSF-invariance is assumed and image restoration is just the inverse of the degradation process. A Wiener filter restoration method based on FOV partition is proposed,which restores each block respectively using its corresponding PSF and combines them together by interpolation. The proposed method is based on a more accurate model and has flexibility in choosing filter parameters for different FOV blocks. Test results verify its superiority to the traditional method.