A vehicle inspection method characterized in that it comprises the steps of: acquiring a transmission image of an inspected vehicle; removing parts of the transmission image that are outside the inspected vehicle in the transmission image to obtain a pre-processed transmission image of the inspected vehicle; acquiring a transmission image template of a vehicle model the same as that of the inspected vehicle from a database; performing registration on the pre-processed transmission image of the inspected vehicle and the transmission image template to obtain a post-registration transmission image and a post-registration transmission image template, respectively; determining a difference between the post-registration transmission image and the post-registration transmission image template, to obtain a change area of the transmission image of the vehicle relative to the transmission image template; and processing the change area to determine whether the vehicle carries a suspected object or not; wherein the removing parts of the transmission image comprises: performing stripe removal in the transmission image to obtain an image with gentle background variations; obtaining a gradient map for the image with gentle background variations and quantizing the gradient map to obtain a binary quantized gradient map; obtaining a largest continuous region in a horizontal projection and a vertical projection in the binary quantized gradient map; and removing parts outside the largest continuous region in the transmission image to obtain the pre-processed transmission image of the inspected vehicle. acquiring a transmission image of an inspected vehicle; removing parts of the transmission image that are outside the inspected vehicle in the transmission image to obtain a pre-processed transmission image of the inspected vehicle; acquiring a transmission image template of a vehicle model the same as that of the inspected vehicle from a database; performing registration on the pre-processed transmission image of the inspected vehicle and the transmission image template to obtain a post-registration transmission image and a post-registration transmission image template, respectively; determining a difference between the post-registration transmission image and the post-registration transmission image template, to obtain a change area of the transmission image of the vehicle relative to the transmission image template; and processing the change area to determine whether the vehicle carries a suspected object or not; wherein the removing parts of the transmission image comprises: performing stripe removal in the transmission image to obtain an image with gentle background variations; obtaining a gradient map for the image with gentle background variations and quantizing the gradient map to obtain a binary quantized gradient map; obtaining a largest continuous region in a horizontal projection and a vertical projection in the binary quantized gradient map; and removing parts outside the largest continuous region in the transmission image to obtain the pre-processed transmission image of the inspected vehicle. performing stripe removal in the transmission image to obtain an image with gentle background variations; obtaining a gradient map for the image with gentle background variations and quantizing the gradient map to obtain a binary quantized gradient map; obtaining a largest continuous region in a horizontal projection and a vertical projection in the binary quantized gradient map; and removing parts outside the largest continuous region in the transmission image to obtain the pre-processed transmission image of the inspected vehicle.