Abstract: The step-by-step transnasal endoscopic surgery training model is a novel clinical teaching method, which is used to teach the clinical thinking and skill on the basis of typical clinical cases and with the guidance of teachers. It has the advantages of CBL (case-based learning), and also conforms to the residency training requirements of operation. This teaching model was used in the standard surgical teaching program for the residents of the otolaryngology head and neck surgery. This training model has set up series of standardization operations, trained the clinical thinking, and inspired the study enthusiasm of the residents. This kind of training model should be promoted.