In chemical production, the in situ rapid accurate and quantitative monitoring of hydrogen has important significance for safety production because of its inflammable and explosive properties. In the study, we first prepared the Pd-Pt alloy nanowires with AAO as the template by potentiostatic pulse electrodeposition in the solutions of 0.2mol/L H₃BO_3containing 60mmol/L PdCl_2and 40mmol/L H₂PtCl₆·6H₂O with pH value of 5.9. For pulsed electrodeposition, rectangular potential pulses were used. During each pulse, a potential of -0.4V versus SCE was applied for 1s, followed by a potential of 0V versus SCE being applied for 3s, with the effective electrodeposition time of 2h. The energy spectrum suggested content of Pt was approximately 30%.