Low frequency oscillation of pointing mirrors used for field scanning or image motion compensation induces push length difference between adjacent frames. Local distortion occurs when constant pixel interval between frames is used to output image. The image distortion is modeled based on a space remote sensor image motion model to investigate reasons and features of distortion caused by angle oscillation, as well as to correct it. Orbit parameters, satellite attitude and pointing mirror position are introduced into the model precisely. Distortion patterns are figured out with specified necessary parameters, and image motion of feature point is used to correct the image output. For corrected images with and without mirror oscillations, least square fittings are made. Simulation shows that distortion magnitude relates not only with orbit and vibration parameters, but also with target′s direction. Under ideal condition, distortion rectification accuracy is better than one pixel by the proposed method. Experiments also verify the preferable effects.