The invention discloses a multi-mode AI tracheal intubation navigation device for a difficult airway. The multi-mode AI trachea cannula navigation device comprises a rectangular frame body, a display screen is arranged at the middle position of one side of the rectangular frame body, a connecting line is arranged at one end of the front face of the display screen, a camera is arranged at one end of the connecting line, mounting blocks are arranged on the two sides of the top of the rectangular frame body, bidirectional threaded rods are arranged at the ends, close to each other, of the two mounting blocks, connecting rods are symmetrically arranged at the two ends of the outer sides of the two groups of bidirectional threaded rods, and supporting plates are arranged at the bottoms of the two groups of connecting rods. Through cooperation of the supporting plates, the connecting rods, the bidirectional threaded rods and the mounting blocks, the device can be well fixed to the mouth of a patient, meanwhile, the mouth of the patient can be effectively supported, fatigue of the mouth of the patient can be relieved in the intubation process of the patient, the patient can feel more comfortable, the cramp phenomenon of the patient is prevented, and the pipe biting condition is avoided.