A self-made PbO2 electrode on Ti substrate was used to degrade p-Nitrophenol through electrochemical degradation method.The solution pH,current intensity and supporting electrolyte dosage were inspected to study what impacted they have on the removal rate of PNP,and the best reaction conditions for electrochemical degradation of PNP were determined.The pathway of PNP was also analysised briefly in this study and a possible degradation pathway of PNP was raised.