목적: Evaluation of the vibratory pattern of vocal folds is of paramount importance to diagnose vocal fold disorders. For this purpose, videostroboscopy is widely used to show ‘illusory’ slow motion images of the vibrating vocal folds. However, its clinical use is limited because it relies on periodic vocal fold vibration and a stable phonation frequency to activate the strobe light. The use of kymographic imaging as a method of visualizing vocal fold vibration, especially for disordered vibration, has increased greatly. Wang et al. have developed a new device - 2D scanning videokymography(VKG) – for mucosal wave analysis in 2013 and showed meaningful results of visualization of vocal fold vibration. In this study, we report the comparison of 2D scanning VKG and videostroboscopy using animal larynx model for mucosal wave analysis. 방법:The excised animal larynx model was used to evaluate the vibrating mucosa of vocal folds by the 2D scanning VKG and videostroboscopy. We prepared various larygeal mocosal lesion model. Fisrt, we prepared a laryngeal mass by making a Vicryl® suture knot in unilateral vocal fold. Second, we made a laryngeal polyposis by injection of glycerine in the Reinke’s space of the unilateral vocal fold. Third, we made a CO2 resected lesion by resection of unilateral vocal fold. Then we compared the efficacy of these two modalities. 결과:The videostroboscopy was superior for the laryngeal mass like a focal morphological mucosal lesion compared to the 2D scanning VKG. The 2D scanning VKG provided distorted images, but had advantages for visual analysis of the lesion located in the superior, inferior, and free edge of vocal fold. And the 2D scanning VKG was effective for evaluation of polyposis and CO2 resected lesion, because fibrotic change of vocal folds can easily detected using 2D scanning VKG. 결론:The 2D scanning VKG is expected to be a promising tool to evaluate the vocal folds vibration for both clinical practice and voice research.