Unmanned aerial vehicle automatic alignment method for fixed target

The invention provides an unmanned aerial vehicle automatic alignment method for a fixed target, and relates to the technical field of control systems. The unmanned aerial vehicle automatic alignment method for the fixed target comprises the following steps that S1, an unmanned aerial vehicle is moved to an approximate area where the fixed target is located, and an unmanned aerial vehicle control center transmits picture information of the fixed target to an image library of the unmanned aerial vehicle through a wireless network to serve as a target image; s2, the unmanned aerial vehicle collects an image in the target area, and then uploads the collected image to the image library; s3, an image recognition module of the unmanned aerial vehicle recognizes the collected image and compares the collected image with a target image; and S4, when a picture similar to the target image exists in the collected image, the image processing module carries out zooming-in or zooming-out processing on the similar picture. T