Abstract: The methods and systems for panorama stitching of trailer images provided by the present invention relates to the field of image processing, comprising: receiving, by a first on-board device, a first image data sent by a camera disposed on the left of the carriage, a second image data sent by a camera disposed on the right of the carriage, and a third image data sent by a camera disposed at the back of the carriage in real time; respectively analyzing the first image data, the second image data and the third image data utilizing an opencv algorithm, to obtain intrinsic parameters, extrinsic parameters and distortion parameters of the cameras; respectively acquiring feature points of the seventh image data, the eighth image data and the ninth image data utilizing a scale invariant algorithm to obtain a set of feature points; and stitching the first image data, the second image data and the third image data according to the set of the feature points to generate a first stitched image; utilizing an H.