Non-destructive testing of oil and gas field surface engineering refers to the non-destructive testing of the welding joints of oil and gas field gathering and transportation pipelines and process pipelines in the field station during the construction of oil and gas field surface engineering, and the excavation verification and testing evaluation of in-service pipelines. It is an important means to ensure the quality of oil and gas pipelines, and is of great significance to ensure the quality and safety of ground engineering of oil and gas fields and promote the sustainable development of oil and gas fields.