A novel Schiff base containing two optical functional blocks,1-phenyl-3-methyl-4-benzoyl-5-pyrazoloneN-benzyl-carbazole(6),was synthesized from phenylhydrazine,ethyl acetoacetate and carbazole.The structure was confirmed by ~1H NMR and IR.Its electron structure was investigated primarily by UV-Vis.Compared with acylpyrazolone or carbazole group,6 exhibits special electron structure.