Abstract: Based on current situations of equipment management and preventive experimental work in the pipeline company, state evaluationbased electrical equipment integrity management systems have been built. Through analysis on the preventive test data and the equipment operation and monitoring data, state evaluation system of equipment is built. In accordance with equipment state evaluation, risk assessment, maintenance strategy and state maintenance decision-making results, it is explored to convert equipment periodic maintenance into statemaintenance and implement electrical equipment integrity management. And through computer communications technology and database network functions, sharing of electrical equipment and its preventive test data, automatic conversion, uniform reporting format, storage and statistical analysis of historical data to evaluate equipment state are achieved, including closed-loop management of equipment defects, which can provide ancillary support function to functional departments to determine equipment state and make decisions, promote standardization and scientization of management and improve overall level of management. The paper introduces the application effects of equipment integrity management system in saving equipment maintenance capital, extending equipment service life, improving personal safety, and achieving paperless testing and maintenance.