This paper presents an image stabilization method based on deformable mirror. Firstly, the stabilization mathematical model based on plane mirror has been set to calculate the stabilization compensatory angle. Secondly, according to the key parameters of deformable mirror, the surface-shape error has been researched. At last, by experiments, the steady effect of deformable mirror has been verified and the stabilization error has been analyzed. The experiment results show that, the deformable mirror we used can realize the image stabilization function. Besides the absolute value of the image stabilization maximum relative error is 1.87%, and the corresponding stability accuracy is 2.11″.