The invention provides an image matching method, device and system based on image feature information, and is applied to the field of image processing. The image matching method based on image featureinformation comprises the steps of performing corner detection on binary images obtained by preprocessing two grayscale images, and extracting a corner of each grayscale image; carrying out edge detection on the two binary images, acquiring an edge amplitude image and an edge angle image of each grayscale image, traversing each edge amplitude image and the corresponding edge angle image, and determining the peak point of each edge amplitude image according to the neighborhood position; and respectively calculating optical flows of the angular points, the edge points and the peak points in the two grayscale images, and matching the two grayscale images based on an optical flow field method to obtain an image matching result. The image feature information-based image matching system disclosed by the invention is wide in application field, simple and convenient in matching condition and ideal in matching effect.