An endoscopy instrument guider port includes a main body member where at least one surgical instrument entrance part is disposed at an upper surface, a protective tube extending downwards from the main body member, a retaining ring body fixed to a lower end portion of the protective tube, the retaining ring body being freely deformed and restored, and a control ring body disposed at a predetermined position along a length direction of the protective tube to be coiled around the protective tube through a folding motion and control a length of the protective tube. According to the present invention, the control ring body disposed at the protective tube facilitates length adjustment and traction generation of the protective tube, appropriate handling of surgical situations is possible because an upper body may be turned and separated, and surgical delays may be prevented while endoscopy operations may be made easier.