HD Fluorescence Endoscopic System uses advanced optical design and signal processing technology that go far beyond the traditional concept of endoscopy. Combining with fluorescent imaging agent, i.e., ICG, the fluorescence imaging system can enable the users to switch the modes freely among Standard White Light Mode, Fluorescence Mode, Dark Fluorescence Mode and Black/White Fluorescence Mode by pressing the buttons on camera head at any time during surgery. Allowing real-time lymphatic system tracking, liver tumor/segment & pulmonary nodule/segment identifying, biliary tree mapping, tissue perfusion evaluation and precise tumor boundary mapping intra-operatively, our system provides surgeons with more accurate, more secure and more effective surgical options.