The technical framework of IoT for submarine pipelines is presented based on the management status. Aiming at the problem of separated monitoring data of submarine pipelines, a wireless adaptor and data aggregation system based on Zigbee technology is designed, which can aggregate all of the monitoring data into one system for submarine pipeline and is conducive to data analysis and correlation establishment between monitoring data. This system provides a firm foundation for the realization of expert diagnosis, big data application, and submarine pipeline safety.