Abstract:Theories on economic law should be studied expansively further and excavated deeply in postcrisis era. Above all,expansive study of national competition theory,risk theory,theory of crisis of public economy and theory of change of circumstances,and deep excavation of value theory,genetic theory and ontological theory concerned with economic law,have great significance in particular with regard to not only development of system construction of economic law,but also improvement and enrichment of theories on economic law.