Abstract: Using graphene oxides prepared by Hummers method and carbon nanotubes with diameters of 30-50 nm and lengths of 50-100 μm as raw materials, the graphene aerogel and graphene/carbon nanotube aerogel were prepared by hydrothermal reduction method followed by freeze-drying treatment. The phase composition, micromorphology and elasticity properties of the aerogels were studied and the effect mechanism of carbon nanotube on the elasticity property was annalyzed. The results show that the two aerogels both had a three-dimensional porous structure. The carbon nanotubes distributed evenly on the graphenes and wrapped the inter wall of the graphene sheets and the connection points between the sheets. The recoverable compressive strain of the graphene/carbon nanotube aerogel was as high as 90%, which was higher than that of the graphene aerogel. The carbon nanotubes can prevent the sliding between the stacked graphene sheets and improve the structure stability of the graphene.