行政诉讼的中心问题是解决具体行政行为是否合法。法院究竟依据什么样的行政规范来判断它的合法性呢?这是审判工作中的一个棘手问题,行政诉讼法也规定的很原则。本文结合行政案例,对行政诉讼中的法律适用问题作些探讨。一、正确认定行政法律、法规的溯及力行政法律、法规的溯及力,是指其时间上的效力。所要解决的是行政规范对其生效前的行为是否具有约束力,是否适用。掌握溯及力,应从相对人 The central issue of administrative litigation is to solve whether the specific administrative act is legal. What kind of administrative standard does the court judge its legitimacy? This is a thorny issue in the adjudication work, and the Administrative Procedure Law also stipulates the principle. This article combines the administrative case, to discuss the law application in the administrative litigation. First, the correct identification of retroactive administrative laws and regulations Administrative laws and regulations retroactive, refers to the effectiveness of its time. What is to be solved is whether administrative norms are binding on their acts before their entry into force, and whether they are applicable. Grasp the retroactive, should be relative