In this invention, the method for measurement of geometrical parameters of a cutter has been developed. The measurement steps include image threshold process, positions of the cutter profile, parameter analysis, and formulation of equations and acquirement of geometrical parameters of the cutter. Then, the least square method is utilized for obtaining linear equations of profile and the center line in the cutter??s image. By linear equation of the cutter??s profile and center line, angular and dimensional parameters of the cutter can be calculated.