GB/T 18310.2-2001 is part 2-2 of the standard for fiber optical inspection interconnects and passive devices, focusing on the mating durability test. The standard specifies the test conditions, operation procedures and evaluation methods. By simulating actual use scenarios such as multiple plugging, connection and separation, the Mechanical Properties, Optical Properties and Reliability of the mating parts of the device are detected, which provides a technical basis for ensuring the mass Stability of fiber optical inspection devices in frequent mating use.