Abstract: Inner inspection of pipeline is a new technique developed in recent years, playing a significant role in the integrity management of pipeline.Compared with traditional internal data management systems in manual management with documents, the closed loop management of inner inspection of pipeline can avoid inconsistency between former and latter links or unavailable use of historical data in re-inspection of pipelines, etc., so as to improve cycle effects of integrity management. Based on analyzing the acquisition, storage and use flow process of inner inspection of pipeline and combined with PIDM pipeline data models, this paper puts forward a cycle that starts from inner inspection information, and then unifies the forms of inspection data, carries out data calibration and correlation with linear reference technology, saves the data based on PIDM historical data model, and establishes excavation sheets to normalize management, repair and maintenance, and ends with failure state updates of the repair sheet. Through complete connection of different links, the closed loop management of pipeline integrity is realized based on inner inspection technology.