This part first introduces the classification of crime of omission in our country and abroad , and then reviews the connection between the classification of crime of omission and law norms , pointing out that we should pay attention to carrying out the principle of prescribed punishment for a specified crime when reviewing the connection between the classification of crime of omission and law norms 第四部分:不作为犯的分类及与法律规范之关系。首先介绍了国外和我国对不作为犯的分类,然后对国内外不作为犯与法律规范的关系进行了考察,指出考察不作为犯与法律规范的关系应注意贯彻罪刑法定的原则。