介绍了按国家平面角检定系统规定的光学角规系列标准计量器具的等级及传递方法，介绍了标定光学角规偏向角ＰＪ—２型仪器的新改进，首次提出标准光学角规组合原理和应用，并且给出组合应用的扩展不确定度，列举了组合标准光学角规补偿法在光学材料高精度直接测量色散中的应用和在Ｔ３经纬仪示值误差检定中的应用。 This paper introduces the grade and transmission method of the standard measuring instruments of optical angle gauge according to the national plane angle verification system. Introduces the new improvement of the PJ-2 instrument which calibrates the optical angle gauge deflection angle. The principle and application of the standard optical angle gauge combination , And given the extended uncertainty of the combined application, the application of the combined standard optical goniometer compensation method in the direct measurement of dispersion of optical materials with high accuracy and the application in the verification of indication error of T3 theodolite are listed.