The invention discloses an image enhancement optical system based on image space scanning and integral image stabilization, and belongs to the technical field of optical imaging. The system utilizes an optical imaging optical-mechanical structure based on the image space scanning principle and the integral image stabilization technology, and also utilizes an image enhancement technology. The system consists of two major parts, namely an optical-mechanical scanning subsystem (1) and a detection processing subsystem (2). The image enhancement optical system based on image space scanning and integral image stabilization has the advantages of strong optical information acquisition ability, long action distance, capability of achieving carrier conformation and capability of achieving edge scanning and imaging, and solves problems of target image blurring and reduction of signal to noise ratio of target to background caused by complex meteorological conditions, such as haze and side backlight, during mechanical scanning movement of an optical system.