The invention discloses a device, a use method and an early warning method for auxiliary recovery of intestinal air fistula. The device is used to help the escort to lift the patch placed at the fistula of the intestinal cavity to prevent the patch from being displaced. When in use, the accompanying person places the arch-bridge-shaped bracket on the hospital bed, and the adjusting bracket slides along the length direction of the hospital bed to the position above the fistula. Adjust multiple sliding components to make them in the required position and angle, pull out the wire in the wire take-up so that the wire hook hooks the lifting wire, after adjusting the length and strength, the wire take-up automatically tightens, and the patch is in the required position In the pulled state, it provides support to the intestinal air fistula closed by the patch. Through the early warning processing of the present invention, the patch changes that traditionally need to be observed by human eyes, especially due to pressure changes or deformations, are transformed into grayscale difference processing of pictures, and it is determined whether the pressure on the patch or Whether the position has changed, improve the efficiency and accuracy of early warning judgment, and avoid the traditional defect of relying on human eye observation.