The invention discloses a graphite phase carbide nitride nanosheet/ZiF-67 lamellar structure composite material, and a preparation method and application thereof. The preparation method comprises the steps of adopting a stripped graphite phase carbide nitride nanosheet, metal and an organic ligand as raw materials, and directly reacting at normal temperature to prepare the graphite phase carbide nitride nanosheet/ZiF-67 composite material with a lamellar structure. The graphite phase carbide nitride nanosheet/ZiF-67 lamellar structure composite material provided by the invention is simple in process and low in cost; compared with a pure two-dimensional carbide nitride nano material, ZiF-67 sheets in the composite material obtained by the invention are uniformly attached onto the carbide nitride nanosheet, so that the specific surface area of the material and a screening ability on a catalyzed substrate can be effectively improved, and the composite material has much high-efficient photocatalytic performance, and can be used for carrying out photocatalytic reduction on carbon dioxide.