The invention discloses a method for extracting global structure information characteristics of scene images. The method comprises the following steps of: reading the scene images and determining whether the scene images are color images or not; if the scene images are color images, converting the color images into grey images; if the scene images are grey images, dividing the grey images into three levels to obtain 31 image blocks in total corresponding to the division of the three levels; computing the structure information characteristics of each of the pixels in the image blocks to obtaineight-dimensional local binary mode characteristics; quantizing the eight-dimensional local binary mode characteristics to obtain and compute the histogram of the one-dimensional local binary mode quantitative characteristics; obtaining and analyzing the main components of the 255-dimensional histogram characteristics to obtain the 40-dimensional histogram characteristics; computing the histogramof the eight-dimensional local binary mode characteristics and fusing the eight-dimensional local binary mode characteristics and the 40-dimensional histogram characteristics; and fusing the 48-dimensional structure information characteristics corresponding to the obtained 31 image blocks to obtain the global structure information characteristics of the images.