This papers restudies the concept and test principle of the addend and multiplicator of electronic distance meter from theory and data,and points out the deficiency in the verification standard of our country.

• 以理论和数据再次阐明测距仪加、乘常数误差的概念和检定原理,指出了国家测距仪检定规程JJG703-2003的不足。