一事不再罚原则在行政执法过程中的运用争议性很大,而我国现行的行政处罚法并没有将这一原则作为行政处罚的基本原则,只是在《中华人民共和国行政处罚法》第二十四条规定,对当事人同一违法行为不得给予两次罚款的行政处罚,在实际执法中缺乏可操作性.通过对有关一事不再罚的相关法律解释的理解和学习,并结合消防行政执法工作的实际,对该原则的界定、一事的分类及该原则的例外做出阐述. The principle of no longer being punished in the process of administrative law enforcement controversial, and the current administrative penalty law in our country did not take this principle as the basic principle of administrative punishment, but in the “People’s Republic of China Administrative Punishment Law” twentieth Article 4 stipulates that the parties to the same illegal acts shall not be given two fines administrative penalties in the actual lack of maneuverability in law enforcement.By the understanding of relevant laws to explain the matter no longer penalties and learning and combined with the fire administrative law enforcement In practice, the definition of the principle, the classification of the matter and the exception to the principle are elaborated.