The anticorrosion protection of oil and gas pipelines and tanks usually adopts the cathodic protection of sacrificial anode method and forced current method, but the cathodic protection device needs regular inspection and maintenance. Currently, line inspectors conduct manual tests on each cathodic protection point every month, the large number of test points in the field, the complex environment, and the large test workload also bring unsafe factors to the line inspectors, and the intermittent test method cannot reflect the cathodic protection situation in real time, and the protection device cannot be maintained in time. The pipeline cathodic protection Internet of Things monitoring system developed by our institute adopts sensor technology, Internet of Things technology, and cloud computing technology to monitor the cathodic protection parameters of oil and gas pipelines in real time, realize visualization, early warning, dispatch management and other functions, and provide strong guarantee for the operation and maintenance of oil and gas pipeline networks.