The invention discloses an anti-leakage patrol system of electric transmission line equipment. The anti-leakage patrol system comprises a handheld terminal and an information gathering device as well as a sensing card, a sensing type card reader, a GPS positioner and a GPS receiver, wherein the handheld terminal comprises an information entry module and an information storage chip; the information gathering device is connected with the handheld terminal to read information in the information storage chip; the sensing card is mounted on the electric transmission line equipment; the sensing type card reader and the GPS positioner are mounted in the handheld terminal; the GPS receiver is connected with the information gathering device; the output end of the sensing type card reader is connected with the information entry module and the GPS positioner respectively; the GPS positioner communicates with the GPS receiver. After detecting the sensing card, the sensing type card reader triggers the GPS positioner, and equipment information and position information of the handheld terminal are input into a computer to be gathered through the GPS receiver, so that the information input by operators is generated in an electric transmission line equipment mounting field, the accuracy of the information is improved, and potential safety hazards of equipment operation is reduced.