Abstract: Radiation Imaging has been applied in medical-radiology diagnose and industrial nondestructive testing. The combination of 3D visualization technology and radiation imaging provides us a more direct method for focus and object check-up, accordingly offers more effective information an inspect result. In this paper, we introduce a 3D visualization system that bases on radiation data, and express it via four aspects: system analysis, integer design, implement of modules and interaction control. It can be a reference to visualization system of radiation imaging.