The invention relates to the field of optical multispectral and multi-polarization-state detection, and specifically discloses a pixel-level multispectral and pixel-level multi-polarization-state detection resolution enhancement technology. The technology involves a standard optical system, a two-dimensional piezoelectric high-speed high-precision micro-scanning platform or FSM system provided with a movable optical lens, a detector in data connection with the movable optical lens, an upper computer, a high-frequency signal controller and an image algorithm processor. On the basis of an original pixel-level multispectral and multi-polarization optical detection system, a high-precision planar micro-scanning platform is introduced, a certain lens in the optical system or the detector is directly fixed on a micro-motion platform, a micro-scanning platform drives the lens to move to generate displacement of one whole pixel on an image plane, a scanning mode is determined according to macro pixels of an optical filter, the micro-scanning platform reaches a stable position, the detector starts to expose and outputs a multi-channel spectrum or polarization state low-resolution image, cycle is carried out, and a multi-channel spectrum or polarization state low-resolution image sequence is obtained.