The invention discloses a porous metal-organic framework hybrid material. A chemical formula of the porous metal-organic framework hybrid material is (Cu4O2(tpa)2)*2NO3*DMA, wherein Htpa adopts 4-(4-benzene acetoxy)-1, 2, 4-triazole, and DMA adopts N, N-dimethylacetamide; and the hybrid material is synthesized by cupric nitrate tetrahydrate serving as metal salt and 4-(4-benzene acetoxy)-1, 2, 4-triazole serving as an organic ligand. The porous metal-organic framework hybrid material has the advantages as follows: 1), raw materials for synthesis are cheap and easy to obtain, the condition is mild, large-scale preparation of the hybrid materials is easy to realize, and the crystal form can be maintained in the large-scale synthetic process; 2), the product has excellent acid resistance and alkaline resistance, and the structure can be maintained in a boiled water environment; and 3), the absorption capacity of the product on CO2 at the temperature of 273K can reach 52 cm<3>g<-1> while the absorption capacity of the product on N2 is only 3.4 cm<3>g<-1>, so that the porous metal-organic framework hybrid material has a good potential application value in the aspect of CO2 preferential absorption.