To promote the construction of equipment support informatization, use interactive 3D technology for interactive electronic technology manual (interactive electronic technical manual, IETM). The 3D multi-media object is inserted into the IETM by cross-referencing, and the 3D display platform based on IETM is established by using ActiveX technology. The sub-object information of the 3D object can be directly obtained by using the application program interface so that the IETM can interact with the 3D objects in the scene. The interactive form of 3D IETM is extended to enable IETM to have desktop-level virtual training capabilities. The results show that, through the application of 3D IETM, the efficiency and effect of the equipment interactive training based on IETM organization training are more obviously, and the function of IETM can be expanded. Integration of SCORM standards and xAPI standards for IETM enables IETM to cross-platform interoperability.