“机关”的本义原本是机器上的启动器械。人们把它引伸到管理学上，是泛指为实现国家职能而组织的重要的管理机构。其中就行政机关而言，有广义和狭义之分。前者指从中央到地方某一级政府机关及其列属各部门和直属单位；后者则特指一级政府机关办公机构。本文所阐述的行政机关 The original meaning of “organ” was originally the starting device on the machine. Extending it to management, people generally refer to the important governing body that is organized for the realization of state functions. Among them, in terms of administrative organs, there are broad and narrow points. The former refers to a certain level from the central government to local government agencies and their subordinate departments and subordinate units; the latter refers specifically to a government agencies office. This article describes the administrative authorities