Integrated insertion structure of hysteroscope

The invention provides an integrated insertion structure of a hysteroscope. The insertion structure comprises an outer sheathing canal, a liquid injection channel special-shaped tube, an illuminationoptical fiber tube and an optical lens circular tube, wherein the outer sheathing canal, the liquid injection channel special-shaped tube, the illumination optical fiber tube and the optical lens circular tube are sequentially arranged from outside to inside; the liquid injection channel special-shaped tube is of a bridge-shaped structure which has a convex upper part and a concave lower part, oneside of the inner wall of the outer sheathing canal is close to and fits the side protruding on the upper part of the outer wall of the liquid injection channel special-shaped tube, the inner side ofthe concave face of the lower end of the liquid injection channel special-shaped tube abuts against the illumination optical fiber tube, so that the illumination optical fiber tube is clamped in theliquid injection channel spe