The invention provides a preparation method of a carbonized Pd (
palladium)-carrying hollow anion exchange
resin microsphere H2O2 (
hydrogen peroxide) electroreduction catalyst. The preparation method is characterized by comprising the following steps: mixing
styrene,
divinylbenzene and deionized water, introducing N2 (
nitrogen), adding CCl4 (tetrachloromethane), then adding K2S2O8 (
potassium persulfate) and NaCl (
sodium chloride), enabling the mixture to react for 2h to 3h at the temperature of 70DEG C, adding methylacryloyl chloroethyl trimethyl
ammonium chloride to carry out
grafting polymerization reaction for 12h to 15h, washing the
reaction product by utilizing
ethanol in a low-temperature trough, centrifugally separating the reaction liquid, and carrying out
vacuum drying on the
reaction product for 4h to 5h at the temperature of 50 DEG C; immersing the anion exchange resin in H2PdCl4 solution for 5h to 6h, taking out the anion exchange resin, and
drying the anion exchange resin for 4h to 5h at the temperature of 50 DEG C; calcining the Pd-carrying anion exchange
resin microsphere for 5h to 6h in a
nitrogen atmosphere at the temperature of 650 to 750DEG C to obtain the carbonized Pd-carrying anion exchange
resin microsphere H2O2 electric reduction catalyst. By
transplanting Pd catalyst in the hollow carbon microspheres, the electrochemical
reduction activity of the catalyst on the H2O2 can be improved, the discharging performance of a H2O2
cathode can be improved, and the escaping of
oxygen can be inhibited.