This study, entitled (Legal System of Qualifying Administrative Leaders in the French National School: An Analytical Study in Light of French Legislation) a subject related to the science of public administration and administrative law at the same time. This is because it relates to one of the most important job categories in the state, which are the administrative leaders; the two researchers studied the appointment system in those senior positions and the job competition procedures. The purpose of this study is to present a sophisticated and ancient legal and administrative model at the same time, at its conclusion, the study reached a number of results and recommendations, the most prominent of which was that the administrative leader has scientific and practical advantages, deep experiences in administration, law, skills, competencies, and outstanding personal characteristics.