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In this study, it was modified the functional group onto the surface of carbon nanotubes, and this process for the active chemical reaction with epoxy.The assembly by modifying carbon nanotubes, hybridized for nanoscale dispersions into epoxy further.We presented the soaking material technology in advance for preparation and properties of carbon Nanotubes/carbon fiber composite material.The functional group we modified onto the surface of carbon nanotubes which was analyzed initially by FTIR and Raman spectroscopy.The organic-inorganic hybrid material we confirmed further by transmission electron microscopy for its nanoscale dispersions, and this composites we inspected its mechanical property such as tensile strength and transverse tensile strength by universal material testing machine.Finally, we studied and compared with their properties of damping for first mode and second mode or others discussion.