行政主体在作出行政行为时往往要具备法定的条件,遵循相应的程序。说明理由作为行政机关权力行使的一项程序性义务,是保障程序理性的手段之一,其通过展示相应原因与最终决策的因果联系以表明行政决定的权威性、正当性和可接受性。通过分析不同类型的行政行为说明理由的必要性,可以使行政相对人更好的维护自己权利,同时也约束着行政主体的行为,促进行政行为的合法、合理性,促进程序正义与实体正义的发展。 Administrative bodies often have statutory conditions when making administrative acts and follow corresponding procedures. Explaining the reason as a procedural obligation exercised by the administrative authority is one of the means to ensure the procedural rationality. It shows the authority, legitimacy and acceptability of the administrative decision by displaying the causal connection between the corresponding reason and the final decision. By analyzing the necessity of explaining the reasons for different types of administrative actions, it is possible to make the administrative counterparts better safeguard their own rights, at the same time, they also restrict the behavior of administrative bodies, promote the legal and rational administrative actions, and promote procedural justice and substantive justice development of.