The utility model relates to a board -like gun sight of leading graduation, including eyepiece and objective, the middle part position of objective and eyepiece distributed from top to bottom last speculum and speculum down, the left surface of eyepiece is connected with the eyeshield leather packing, objective internally mounted has the graticule, eyepiece and objective and the barrel body fixed connection that laminates entirely, compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of simple structure and reasonable design, it is leading through setting up the graticule, can improve and aim efficiency, through setting up the full laminated structure of objective and barrel body for the precision of gun sight improves greatly, and the accurate heart is the accurate heart of barrel promptly, is fit for beginner's operation, through setting up speculum from top to bottom, improve the height of eyepiece, increase user's comfort.