Regulatory plan adjustment is a flexible optimization mechanism established for better implementation of regulatory plan,but in practice it often produces many negative problems.According to a previous case study,the system of regulatory plan adjustments prioritizes the procedural arrangements,and lacks substantive content arrangement,which is one of the important causes for random argumentation,inadequate examination,and blind decision-making in the management of regulatory plan adjustments.Therefore,it is necessary to strengthen the substantive examination of regulatory plan adjustment through unified technical management,so that the decision-making has evidences to follow.Based on the actual situation and research conclusion of the above case,this paper analyzes the meaning and action mechanism of substantive contents.Then the paper discusses the technical management system and methods of regulatory plan adjustment based on improving the substantive content,including five technical management factors:requirements for argumentation,as well as the legitimacy,applicability,necessity,and rationality of regulatory plan adjustment.It attempts to develop a corresponding examination and decision-making mechanism,providing a reference for setting a certain entry,establishment,and passing conditions of regulatory plan adjustment.