The new development pattern, in which domestic economic cycle plays a leading role while international economic cycle remains its extension and supplement, is a strategic choice in the face of changes in the internal and external economic landscape such as anti-globalization, trade wars, and COVID-19 pandemic. Economic law, which is extremely sensitive to the market economy environment, has coupled with the new development pattern of "dual circulation" in the field of government-market relations, and the legal issues in the new development pattern are focused on the areas of macro-control law and market regulation law. However, economic law, known as "intervention-centered", "responsive" and "problem-oriented" law, the features of which jointly laid the foundation for its response to the new development pattern. In this regard, under the premise of adhering to problem orientation, the response of economic law can comply with the transition from an intervention-oriented government to a regulatory-oriented government as a whole. At the same time, macro-control law needs to adhere to the "discretion under the rule of law", and market regulation law also requires the synchronous advancement of system supply and regulation reform, so as to provide a sound economic legal guarantee for the new development pattern of "dual circulation".