Abstract: The storage tank at the station of oil pipeline is the primary equipment for oil storage, as well as the main component of the strategic petroleum reserve storage. The corrosion situation of tank floor has direct effect on the service life of storage tank. In China, the corrosion of tank floor is mainly controlled by using coating combined with cathodic protection. During the welding of tank floor, the coating near the welding seam is damaged and can be hardly recovered, so the cathodic protection plays a crucial role. At present, there are a series of tank floor cathodic protection standards in China, and some problems occur when they are used. In order to make domestic cathodic protection standards for land oil tank more applicable and scientific, the domestic and foreign related standards were compared based on actual operation to analyze their technical differences, and then reasonable normalized revision suggestions were put forward.