Voltage ACDC converter standard is one of the common electricity metering standards, compared with voltage ACDC converter standard, AC voltage can ultimately be traced to DC voltage, which has a higher precision. This article describes several common voltage ACDC converter standard principles and calibration methods. Calibration methods in the millivolt range of ACDC converter standard, procedures and major sources of uncertainty are briefly analyzed and explained, this paper also gives a system design of 10∶1 voltage divider selfcalibration. On this basis, the paper also describes the ACDC converter calibration data processing methods and formulas.