The invention provides a temperature influence correction method and system for a power frequency electric field measuring device. The method comprises the steps: placing the power frequency electricfield measuring device and an employed support in a power frequency electric field generating device in a closed space with the continuously adjustable temperature and humidity; obtaining the law of influence of the temperature changes on the power frequency electric field measuring device through temperature adjustment during constant humidity, and calculating a corresponding temperature influence correction coefficient; performing the numerical fitting of temperature correction coefficients under different humidity values to obtain a corresponding correction function; and performing the numerical correction according to the readings and a correction function of the power frequency electric field measuring device in the actual measurement. Compared with the prior art, the method and system iron out the defects that a part of conventional temperature-sensitive power frequency electric field measuring device change severely with temperature and cannot meet the application demands underdifferent temperatures, and are more accurate in obtained measurement results.