Abstract: The reliability of phased array ultrasonic testing (PAUT) depends on the testing procedure, and almost all the ship classification societies have required that this technology be procedure qualified because the qualification is necessary for the effective application of the PAUT. Through the qualification process, the related applicants can understand the advantages and shortcomings of the PAUT, which is very helpful for the popularization of the technique. The concrete schemes and steps are introduced in the paper to benefit related NDT personnel to understand the characteristics of NDT in offshore engineering enterprises.