UHF time difference location method is difficult to be widely used in pd monitoring scenarios because of its high requirement on the calculation accuracy of arrival time difference of discharge pulses. In this paper, a technique of partial discharge location in GIS based on micro-information and statistical information is proposed. Firstly, the micro-information of discharge pulse is used to verify the arrival time and correct the time difference, and then the probability distribution of multiple location results is used to determine the final location result. Field experiments and case studies show that this method can locate the power supply accurately no matter it is a single discharge defect or multiple discharge defects.