With wide application of metallic materials in construction of oil and gas pipelines, close attention has been paid to relative corrosion problems. Cathodic protection technology is a very effective electrochemical protection method for inhibiting metal corrosion. Testing on relative parameters of cathodic protection system can ensure cathodic protection effectiveness and reduce the risk of metal corrosion. Compared to traditional manual testing methods, intelligent acquisition and monitoring system can monitor relative parameters of cathodic protection system timely and synchronously, reduce measurement errors and save a lot of labor costs. With rapid development of science and technology, more businesses will devote into development and construction of the system, which is not only beneficial economically and socially, but also effective to promote the innovation and development of industrial technology.