The invention relates to an identification method of a traffic sign board easily identified through computer vision identification. The method includes the following steps that: a concentric multi-color ring pattern is installed on an existing traffic sign board body, a plurality of monochromatic rings are arranged and combined according size relations so as to form the concentric multi-color ring pattern; an image sequence containing the concentric multi-color ring pattern is acquired through a camera; linear scanning is horizontally performed on each frame of acquired image, and pixel groups are screened out according to colors in a predefined color set so as to form color vector arrays; all the screened-out color vector arrays are analyzed, so that one color vector array is generated finally; and traffic sign information corresponding to a defined traffic sign coding mode matched with the color vector array is searched according to the color vector array. With the identification method of the invention adopted, simple and accurate identification of traffic signs can be realized; influence on detection and identification accuracy caused by interference factors can be decreased; and the guarantee of the safety and the high efficiency of the passage of road traffic can be facilitated. The identification method has an excellent application prospect in the development of a driving assistant system.