Many writers and thinkers believe that the evolution of administrative law is inseparable from the rise and fall of theories of government and administration. In other words, changes in theories and approaches to managing public affairs and public administration have led to changes and the introduction of new approaches or frameworks in administrative law. In this article, we show that the transition from traditional views of governance to new public management and the emergence of regulatory governments, which see steering as the role and duty of government rather than rowing, and Privatization, deregulation, and the use of market style in the management of public affairs have led to the formation of a new generation of administrative law with distinctive features from previous generations. In this generation, which is called the "new administrative law" due to the "new public management", instead of the previous command and control systems, the emphasis is on public participation with the private sector, and the distinction between legislative and law enforcement steps is in place and Has given a dynamic interaction between these stages. However on the one hand the roles and responsibilities defined in our constitution for the government, and on the other hand, the formation of a global trend to reconsider the market-oriented conceptions of government and administration, has led to the achievements of the new administrative law in question. And its applicability in the legal, political and managerial environment of our country to face doubts.