The texture of power line inspection images with parallax variation is complex， the number of paired matching points obtained by traditional algorithms is less and the registration accuracy is low， which seriously affect the stitching effect of power line inspection unmanned aerial vehicle image. In order to solve the problems， a new image stitching method based on improved Order-Aware Network （OANet） was proposed. Firstly， the Accelerated KAZE （AKAZE） algorithm was adopted to match the power line inspection images to be stitched roughly. Secondly， the Squeeze-and-Excitation Networks （SENet） was added to the Order-Aware module in OANet， which helped to enhance the grasping ability of the network for both the local and global context information， and more accurate paired matching points were obtained. Then， the Mesh-based Photometric Alignment （MPA） algorithm was used to register the images to be stitched. Finally， the optimal suture line in the overlapping area was calculated by the content compressed sensing algorithm to complete image stitching. The number of correct matching points of the improved OANet network is about 10% higher than that of the original OANet network with time consumption increased by 10 ms on average. Compared with the registration stitching algorithms such as As-Projective-As-Possible （APAP） algorithm， Adaptive As-Natural-As-Possible （AANAP） algorithm and MPA algorithm， the proposed algorithm has the highest stitching quality with the root mean square error of the overlapping area of the images to be stitched is 0 and no distortion in the non-overlapping area. Experimental results show that， the proposed algorithm can stitch the aerial images of power line inspection quickly and stably.