摘要： 刑法中的过失犯可以分为纯正的过失犯与不纯正的过失犯，前者是指只能由过失构成的过失犯，而后者是指既可以由故意构成又可以由过失构成的过失犯。从我国刑法规定上对这两种过失犯进行描述与比较可发现，二者在立法上具有不同的特征。在此基础上，区分纯正的过失犯与不纯正的过失犯具有多方面的理论意义，刑法规定的“过失犯罪，法律有规定的才负刑事责任”只适用于不纯正的过失犯而不适用于纯正的过失犯。不纯正的过失犯与故意犯共用一个构成要件，因而其实行行为也是共同的；但纯正的过失犯则具有独立的构成要件，其实行行为需要专门讨论。最后，纯正的过失犯与不纯正的过失犯的区分对于确定过失在三阶层犯罪论体系中的地位也具有重要意义。

关键词: 过失犯, 纯正的过失犯, 不纯正的过失犯

Abstract: This article proposes a distinction between the pure negligent crime and the non-pure negligent crime for the first time among Chinese criminal law scholars.It argues that the pure negligent crime means those negligent crimes which can only be committed negligently，while the non-pure negligent crime can be committed either negligently or intentionally.The author describes and compares these two types of negligent crimes based on the regulations in Chinese Penal Code and argues that these types of negligent crimes have different characteristics legislatively.Based on these analysis，the author argues that the provision of“criminal liability can be imposed on negligent crimes only when there is explicit regulation in criminal law”can only be applied to the pure negligent crime while cannot be applied to the non-pure negligent crime.The non-pure negligent crime shares the objective element with a corresponding intentional crime.Therefore，their action is the same.On the contrary，the non-pure negligent crime has an independent objective element and therefore its action should be explored in a special way.Finally，the distinction between the pure negligent crime and the non-pure negligent crime is also meaningful for the position of the negligent within the three-stages structure of crime.

Key words: Negligent Crime, Pure Negligent Crime, Non-pure Negligent Crime