The pipes transported by paint pipelines are generally steel pipes, which are connected to long-distance pipelines by welding and flange connection devices, and valves are used for opening and closing control and flow regulation. Oil pipelines mainly include isothermal transportation, heating transportation and sequential transportation. Pipeline corrosion and how to prevent corrosion is one of the important links in pipeline maintenance. Oil pipelines have become one of the main transportation tools for oil, and they still have considerable development potential in the future.