The laser beam center position′s measuring accuracy has decided laser weapon′s fighting efficiency directly,because the laser weapon is the long-range operation,the traditional laser facula central place survey algorithm has certain insufficiency to the long-distance range laser facula ecenter′s examination;In the foundation of conducting the research to the traditional laser facula central place computational method practical application limitation,proposed the circle localization algorithm determination laser facula central place′s method,has confirmed this algorithm validity through the experiment,and utilizes this algorithm success in the actual distant field laser facula measurement equipment.