With the help of fluorescent reagents and proteins in the body, it has fluorescence characteristics and can release fluorescent images under near-infrared light. By injecting fluorescent reagents into the vein before or during the operation, the fluorescence can be directly observed by the camera system during the operation The organization of the tumor allows the location, size, boundary, sub-focus, etc. of the tumor to be clear at a glance, allowing the surgeon to be more confident during the operation. It adopts multi-spectrum medical imaging technology, uses multi-spectrum mixed light source illumination and multiple sensors for independent imaging. Combines unique multi-spectral imaging synthesis technology. The imaging of visible light and fluorescent images is clear and accurate, and perfectly displayed on the screen. Fluorescence enhancement algorithm, highlight the boundary of fluorescence, fluorescence contrast.