Metal is one of the most widely applied material in human history,and the corrosion behavior research and test in its various application environment have been an important topic.The electrochemical noise(EN)test techniques and analysis methods are introduced,and the use of electrochemical noise technique on the study of metal corrosion behavior such as aluminum alloy,steel,copper alloy at home and abroad in recent years is reviewed,while the application of electrochemical noise technique in the detection of metal corrosion are discussed.