​The endoscopy department of Sichuan cancer hospital was founded in 1985. It is the earliest professional department established with tumor characteristics in Sichuan. Currently, this department have the six advanced electronic gastroscopes, such as Japanese Olympus 290, four hosts, 5 colonoscopes, one electronic duodenoscope, four electronic bronchoscopes, one three-dimensional endoscopic ultrasound diagnostic system with small probe, one radio-frequency ablation apparatus, one high-frequency surgical treatment system and one German intelligent argon beam surgical system.