High-stability thoracoscope

A high-stability thoracoscope relates to the field of medical instruments and comprises a thoracoscope body, a limiting strip, a limiting plate and a control assembly. The limiting strip is fixedly connected to the inner wall of the thoracoscope body, the limiting strip is in an arc shape and is arranged along the rotating axis of a snake bone control rod of the thoracoscope body, and limiting pieces are evenly arranged on the inner side of the limiting strip at intervals. The limiting plate is matched with the snake bone control rod and is driven by the control assembly. The limiting plate has a first working position and a second working position. When the limiting plate is located at the first working position, the limiting plate abuts against the limiting piece so as to limit resetting of the snake bone control rod. When the limiting plate is located at the second working position, the limiting plate is separated from the limiting piece, resetting limitation on the snake bone control rod is relieved, the