This standard specifies an accelerated test method for evaluating the high-temperature resistant cathode disbonding performance of buried pipeline insulation outer corrosion layer under high temperature conditions. Applicable references to this document include SY/T 0037 Cathode disbonding test method for pipeline corrosion layer, SY/T 0066 Nondestructive Measuring method for thickness of steel pipe corrosion layer (magnetic method), SY/T 0094 Cathode disbonding test method for pipeline corrosion layer and electrolysis cell method. This standard creates artificial defects on the surface of the anti-corrosion layer, places the specimen in a high-temperature electrolysis solution and applies a voltage to simulate the corrosion resistance performance in a high-temperature environment.