Abstract: Objective To develop a diagrammatic recording system for choledochoscopy and evaluate the system with clinical application. Methods To match the real-time image and procedure illustration during choledochoscopy examination, we combined video-image capture and speech recognition technology to quickly generate personalized choledochoscopy images and texts records. The new system could be used in sharing territorial electronic medical records, telecommuting, scientific research and education, et al. Results In the clinical application of 32 patients, the choledochoscopy diagrammatic recording system could significantly improve the surgeons' working efficiency and patients' satisfaction. It could also meet the design requirement of remote information interaction. Conclusion The choledochoscopy diagrammatic recording system which is recommended could elevate the quality of medical service and promote academic exchange and training.