Abstract: Carbon capture, utilization, and storage（CCUS） technology, as the only pathway to near-zero emissions of fossil energy at present, is crucial for reducing CO₂ emissions and supporting China′s "dual carbon" strategic goals. The large-scale, long-distance CO₂ pipelines, which connect CO₂ capture and storage sites, play decisive roles in ensuring the efficient operation of CCUS projects. In this work, the construction status of important domestic and international CO₂ pipeline projects is summarized basing on the phase characteristics and transport status of CO₂. The influence mechanisms of water content, impurity gas, and transportation technology on the corrosion behavior of CO₂ pipelines are summarized. The research progress on corrosion prevention methods such as corrosion-resistant pipeline materials, coatings, and corrosion inhibitors is reviewed. The future development direction of CO₂ pipelines is prospected. Compared with the demand of CCUS project and the mature CO₂ transportation pipeline technology in the world, there are certain gaps in the construction and experience of long-distance and large-scale CO₂ pipelines in our country, and it is urgent to deepen the engineering practice research of supercritical CO₂ pipeline transportation technology. At present, most studies on CO₂ pipelines are concentrated in the laboratory environment, and there are discrepancies in some research findings, which cannot effectively guide the construction and practical engineering application of CO₂ pipeline in China. Thus, it is urgent to establish pilot-scale experiment platforms and carry out massive experimental studies to reveal the interaction mechanism of multiple factors under actual complex working conditions. In addition, it is suggested to use cost-effective bimetallic composite pipes and develop novel types of efficient corrosion resistant coatings and corrosion inhibitors suitable for bimetallic composite pipes, in order to form a complete set of new protection technology for CO₂ pipelines.