The invention discloses a protein and amorphous metal organic framework compound and a preparation method thereof. The organic framework compound has a 2 nm-50 nm mesoporous structure. The preparationmethod comprises the following step of enabling a protein, zinc ions and an organic ligand to react in a solvent, wherein the organic ligand is a compound containing an imidazole group; the protein is one or a combination of several kinds of cytochrome C, cytochrome P450, horse radish peroxidase, alcohol dehydrogenase, lipase, acetylcholin esterase, laccase, a green fluorescent protein, glucose dehydrogenase, glucose oxidase, trypsin, bacillus subtilis protease, carbonic anhydrase, aldehyde ketone reductase, amylase, saccharase, superoxide dismutase, urease and catalase. The preparation method of the protein and amorphous metal organic framework compound provided by the invention is simple to operate and mild in condition, the obtained product is high in protein embedding rate and good inprotein stability, and the biologic al activity of the protein is reserved to a greater extent.