The resolution of ground-based large aperture adaptive telescope which is limited by diffraction and atmospheric turbulence can’t achieve the demand of high-orbit satellite imaging, while synthetic aperture imaging can get high resolution without using large telescope. In this paper, we analyzed the merits and demerits of several synthetic aperture imaging method such as amplitude interference imaging, intensity correlation imaging, and Fourier telescope which can be used in high-orbit satellite imaging. According to the analysis we prospected for the development of synthetic aperture imaging method towards high-orbit satellite in the future