Abstract: The theory of joint crime and the theory of joint action is mainly the theory that Japanese criminal law scholars launch for dispute on the specific provisions of “joint principal offender” in Japanese criminal law. From the specific views of Japanese scholars on the joint theory of crime and behavior, it is difficult to directly explain the “joint crime” stipulated in Article 25 of the criminal law of China. The concept of joint crime in article 25 of criminal law is the theoretical summary of the essence of joint crime. The essence of joint crime should be explored from the concept of joint crime.

Key words: joint crime, essence, doctrine of criminal law

摘要： 犯罪共同说与行为共同说主要是日本刑法学者针对日本刑法中“共同正犯”的具体规定而展开争议的理论。从日本学者关于犯罪共同说与行为共同说的具体主张来看，难以直接用于说明我国刑法第25条规定的共同犯罪。我国刑法第25条关于共同犯罪概念的规定是共同犯罪本质的理论概括，共同犯罪的本质应当从共同犯罪概念中探寻。

关键词: 共同犯罪, 本质, 刑法教义学