介绍了一种利用光电自准直仪测量六面折射转鼓角度误差的新方法及测量原理及测量步骤。该方法一次测量可同时获得中心角和倾角误差数据，可用于六面折射转鼓角度误差的高精度测量。针对精度为 0.5.的标准角度块进行测量，实验表明该方法测量精度优于 0.5.，可应用到其他多面体类零件角度误差的高精度测量。

This paper introduces a kind of novel method for angle error measurement of 6-face rotating drum, with the measurement apparatus and experimental procedure. The method not only gets high precision, and can also obtain a central angle and inclination error distribution data that can be used for high precision measurement of 6-face rotating drum angle error. According to the measurement standard angle precision of 0.5., experiments show that the measurement results of this method is credible, of which accuracy is superior to 0.5., and such method can be applied to high accuracy measurement of angle error for other polyhedral parts.