Historiography I deals with the criticism of historical documents and facts and historiography Ⅱ deals with the understanding and explanation of historiography I. The universality of historiography I is easy to understand,but historiography Ⅱ is not alike. It is concerned with the historical epistemology. W. H. Walsh tried to resolve this problem by raising perspectivism. Author argues that perspectivism has gone only halfway and tries to make further inquiry.