Abstract: The paper summarizes the technology development actualities of large-scale pipelines transporting CO₂ at home and abroad. CO₂ pipelining and oil pipelining are similar in transporting technology, however major difference for the former is the specialrequirements in corrosion control and/or insulation and operation of CO₂ pipeline. In China, long-distance CO₂ pipeline have not yet been constructed, and next work to be done is to introduce foreign advanced technology and strengthen joint development on relative production, science and research; and skid-mounted testing equipment can be utilized in field engineering experiment inorder to fill in the gaps in the field rapidly. In the light of CO₂ emissions and geological storage in China, analysis cost for CO₂ CS (capture and seal-up for safekeeping) technology is lower than the international transaction value on carbon emissions, therefore, the technology development in CO₂ transportation through large-scale pipeline is of great significance for environmental protectionand strategy.