Based on the catalytic effection of iron-tetrasulfonatophthacyanine ( FeTSPC ) and the supermolecular feature of €%[-cyclodextrin ( €%[-CD ]. A new mimetic peroxidase has been used to the determination of hydrogen peroxide.Make FeTSPC and €%. A new mimetic peroxidase has been used to the determination of hydrogen peroxide.Make FeTSPC and €%[-CD as a new mimetic enzyme of peroxidase to catalyse the O-phey lenediamine(OPDA)and H2O2 system,and use this system on quantitaive analysis of hydrogen peroxide.The optimum concentrations of FeTSPC and €%[-CD were studied. The value of pH = 5.8 was found to be the optimum value for the experiment. The best reaction time and temperature was 30min and 40℃. Under the optimum conditions, the calibration graph has a linear feature in the range of 2.0€?0~1.2€?0mol/L. Satisfactory results were obtained in the detection of hydrogen peroxide in real samples by this method.