The tracheoscope catheter bending structure mainly includes a main elastic spring ring, two small elastic spring rings and a fixed seat, wherein the main elastic spring ring is arranged inside a hose at the far end of a tracheoscope catheter the two small elastic spring rings are arranged at the internal opposite two side positions of the main elastic spring ring two pull wires provided for a tracheoscope are respectively penetrated through the two small elastic spring rings the fixed seat is held at the farthest end of the hose the far ends of the two pull wires respectively pass through penetration holes at the two sides of the fixed seat and are fixed the other ends of the pull wires are extended and are combined with a control mechanism inside a handle.
