相对于作为犯罪而言,不作为犯罪发生率相对较少。但就理论上的复杂性和司法实践中的认定而言,其难度远甚于作为犯罪。为此,本文主要从作为义务来源、性质、先行行为引起的作为义务在认定中的问题及作为义务的地位等几个方面探讨了不作为犯中的作为义务。 Relatively as a crime, the incidence of inaction is relatively small. However, as far as theoretical complexity and judicial practice are concerned, it is more difficult than criminal. For this reason, this article mainly discusses the obligations of omission from several aspects such as the origin of obligation, nature and precedent behavior as the problem of obligation in affirmation and the status as obligation.