Graphene oxide modified by β-cyclodextrin(β-CD-GO)was prepared in aqueous phase and characterized by Fourier transform infrared spectroscopy(FTIR).β-CD-GO was electroreduced onto the surface of glassy carbon electrode(GCE)by the constant potential electrodeposition technology for preparation the GCE modified by β-cyclodextrin-reduced graphene oxide(β-CD-RGO);with the GCE modified by β-CD-RGO was used as the working electrode,further constant potential electrodeposition technology was used to coelectrodeposit Au and Pt nanoparticles onto the GCE modified by β-CD-RGO surface,obtaining the GCE modified by AuPt/β-CD-RGO,also known as hydrogen peroxide(H2O2)electrochemical sensor.Based on AuPt/β-CD-RGO modified GCE,this paper uses cyclic voltammetry to study the electrochemical behavior of H2O2 and explores the effect of electrodeposition time on the electrocatalytic activity of H2O2,in order to provide a basis for the establishment of electrochemical detection methods for H2O2 in textile and other industries.