GB/T 41493.2-2022 specifies the accelerated life test method for mixed metal oxide anodes used in cathodic protection applied to soil and natural water environments. It is designed to compare material durability and evaluate the design-expected lifespan under rated current. The standard clearly defines the test principles, apparatus, and procedural requirements. The core of the method involves using instruments such as a DC constant current power supply, electrolytic cell, temperature measuring device, and data acquisition equipment to apply high current density for accelerated electrolysis in a simulated environment. The failure of the anode is determined by monitoring changes in cell voltage, and the test data are used to fit a life curve. This provides a unified technical basis for the selection and quality control of anode materials.