Calibration method of capacitive current tester, calibration device and calibration system

The invention discloses a calibration method of a capacitive current tester. The method comprises the steps of setting configuration of a power system simulation module in the calibration device, wherein the power system simulation module is used for simulating an equivalent capacitance current system; carrying out a plurality of times of standard current tests and capacitance current tester tests in the calibration range to obtain standard current and test current; and S3, calculating the deviation between the standard current and the test current, and determining the calibration result of the capacitive current meter according to the deviation, wherein the larger the deviation is, the lower the precision of the capacitive current tester is, and the smaller the deviation is, the higher the precision of the capacitive current tester is. According to the invention, the precision calibration of the capacitive current tester is realized, and the interference of external factors is effectively reduced in the proc