Abstract: The technical method and recent development of industrial computed tomography(CT) were introduced briefly, especially in the research and development status about reconstruction arithmetic and internet applications in domestic. At the same time the research state of high energy industrial CT was introduced and its technical data in domestic and overseas companies was compared. It also introduced particularized application of industrial CT in precise weld seam structure, density distributing characterization, assemble quality and converse engineering, and so on. Then the applied direction of industrial CT especially high energy industrial CT was expected.