GB/T 45391-2025 "nondestructive testing instrument eddy current testing equipment, array probe performance and inspection" is a national standard, which will be implemented in 2025 and is suitable for the performance evaluation and mass verification of array probes in industrial eddy current testing. The standard system specifies the technical parameters, performance indicators and inspection methods of array probes, covering key characteristics such as Sensitivity, resolution, blind zone, channel conformity, etc., and details the test conditions, equipment requirements and data processing specifications. The standard innovatively introduces digitalization detection technology evaluation system, optimizes the quantitative evaluation method of probe performance, and adds modern industrial inspection requirements such as multi-frequency detection compatibility and dynamic Response characteristics.