Abstract: Taking vapor grown carbon fiber(VGCF) as a conductive filler, and shape memory polyurethane(SMPU) as matrix, while using NMP、DMF、THF as solvent, respectively, VGCF/SMPU composites were prepared via solution mixing method. The effect of different solvents on the dispersion of VGCF and the composites’ morphology were studied by UV/visible spectrum, SEM and optical microscope. The results show that different types of solvents have obvious influences on the dispersion of VGCF and the morphology of the composites, and NMP is the best solvent for preparing VGCF/SMPU composites.