Abstract: Aiming at the high requirement for in-service inspection of stress state of service pipeline, the near-zero calibration test block and arc surface probe are developed to meet the application of ultrasonic inspection of stress state of pressure pipeline, so as to overcome the adverse effects caused by high processing stress of high grade spiral pipe base metal, large curvature of pipe diameter and air flow vibration of station. In order to solve the complex large deformation problems such as horizontal displacement and base upwarping after pipeline excavation, the stress state of the deformed pipeline is accurately analyzed, and an effective repair scheme is formulated to ensure the safe operation of the station pipeline in the later stage. The field test shows that the proposed stress ultrasonic detection scheme can not only obtain the distribution law of pipeline stress, but also provide data accumulation and measures reference for similar situations in the later stage, and the test accuracy is reliable, which can meet the requirements of on-line measurement of pipeline stress in oil and gas industry.