The invention discloses an interface reaction-controllable graphene titanium-based composite material preparation method. The method is characterized in that silicon carbide nanoparticles are adoptedto coat the surface of graphene, so that the contact area between the graphene and a titanium substrate is reduced, and the mutual diffusion between carbon and titanium at high temperature is hindered. According to the preparation method, the problem that the graphene and the titanium substrate are easy to generate chemical reaction in the high-temperature forming process is solved, and a graphenetitanium-based composite material can be prepared by using few layers or even single layer of graphene as a reinforcement.