Abstract: To avoid the phenomenon of jaggy and blurry edges during reducing an image,after analyzing the nearest neighbor interpolation model and the surface fitting model,an image reduction algorithm is proposed based on the spring model.The interpolation formula is presented,and the output results concerning on image reduction are simulated based on different algorithms.The result of experiment shows that the proposed method is able to maintain clear borders of the source image,and the algorithm is efficient in computation for making image reduction.