Abstract: With the deep integration of information technology and the industrialization of oil and gas, as well as the development of advanced information technologies such as big data, cloud computing and artificial intelligence, the intelligent operation and maintenance of oil & gas storage and transportation equipment based on the industrial internet has become the trend of development. To meet the urgent requirement of digital transformation and safe operation of oil & gas storage and transportation industry, the current status of intelligent operation and maintenance of oil & gas storage and transportation equipment was summarized. On this basis, a technical framework on intelligent operation and maintenance of oil & gas storage and transportation equipment based on the industrial internet was proposed, and the key technologies of intelligent operation and maintenance under this framework were sorted out, including the monitoring and evaluation of multi-source information fusion, accurate adaptive diagnosis, prediction and evaluation of operation and maintenance risks, intelligent operation and maintenance decision, and development of visual intelligent operation and development system. Besides, the typical application of intelligent operation and maintenance of oil & gas storage and transportation equipment based on industrial internet in equipment monitoring and health management, performance evaluation and energy consumption management, risk assessment of equipment and facilities, and risk control of intelligent patrol inspection and operation, was analyzed. Further, the technology development trend of the combination of digital twin, industrial internet, big data, artificial intelligence and equipment operation and maintenance was discussed, so as to provide a reference for the intelligent operation and maintenance of oil & gas storage and transportation equipment.