A large domestic medical equipment company, in order to tackle key national 13th Five-Year key technology projects, relying on its own strong technical research and development strength, developed an endoscope system suitable for ultra-high sensitivity, high-definition image and multi-mode image fusion technology in minimally invasive surgery. The system needs to be used in conjunction with the medical endoscope and the fluorescent contrast agent indocyanine green (ICG). It is suitable for providing real-time visible and near-infrared fluorescence images in minimally invasive endoscopic surgery, providing doctors with an accurate surgical image.