Abstract: The paper concerns in the structure and performance of~(60)Co container CT inspection system. Radiation source and detector was fixed on a ring connected with the kickstand by large gear. The radiation source and detector can roll around object,and the object is moved through inspected tunnel by roller conveyer. The system can do DR inspection for object from any direction and do CT inspection for air container. Inspection ability of this system is higher than that of present inspection systems. Besides, this system can determine materiel substance in object based on the correlation between grey scale and materiel density.