介绍了一种全新的三维曲工件形状的归一化测量方法。通过测量工件曲面上的若干条截面曲线的曲率函数而测得曲面工件的三维形状，并且验证了该测量方法的实用可行性． A new method of normalizing the shape of three-dimensional curved piece is introduced. The three-dimensional shape of the surface workpiece is measured by measuring the curvature function of several section curves on the workpiece surface, and the practical feasibility of the measurement method is verified.