Endoscope steering system

The invention relates to an endoscope steering system, and belongs to the technical field of endoscopes. The steering system comprises a steering device arranged between the tip part of the endoscope and the insertion tube; the steering device comprises a rotating unit I which rotates around the central axis of the endoscope body and a rotating unit II which is arranged on the rotating unit I and is used for driving the tip part of the endoscope to swing towards the left side and the right side of the central axis of the endoscope body; according to the invention, large-range steering of the tip part of the endoscope is realized, and the number of parts for steering is reduced; the length of the bending part is shortened; the turning radius is reduced; and the manufacturing process difficulty is reduced. A first rotating unit and a second rotating unit in the steering device are in transmission connection through a gear, so that the relative positions of the first rotating unit, the second rotating unit and t