A method by which a planar scan videokymographic image generation server generates planar scan videokymographic images by using real-time or pre-stored ultra-high speed laryngeal endoscopy images. The method includes the steps of: (a) acquiring monochrome or color ultra-high speed laryngeal endoscopy images; (b) setting a target region and a unit pixel for generating the 2D scan videokymographic images from the ultra-high speed laryngeal endoscopy images; (c) extracting pixel information of each frame of the ultra-high speed laryngeal endoscopy images according to the unit pixel for the target region; (d) generating frames of the planar scan videokymographic images by combining the extracted pixel information of each frame; and (e) generating a planar scan videokymographic video by combining the frames of the planar scan videokymographic images.