Drainage tube anti-falling fixing device

The utility model provides an anti-drop fixing device for a drainage tube, which relates to the technical field of medical instruments, the anti-drop fixing device for the drainage tube comprises a pasting film and a fixing clamp, the fixing clamp comprises a base and a cover body, and the base is provided with at least three clamping grooves vertical to the surface of the pasting film. Due to the fact that the clamping groove formed in the base is perpendicular to the surface of the pasting film, the drainage tube is spirally folded at least three times in the base in the axial direction, one section of the drainage tube is left on the side edge of the base to form a buffering section after each folding, and the drainage tube is clamped in the clamping groove and then buckled by the cover body to be fixed. When sudden external force is encountered, the conducted external force is absorbed by the buffering section, the traction force received by the body outlet end of the drainage tube and the pasting film is