被害人承诺是大陆法系刑法中的违法性阻却事由之一,也是中国刑法中的排除社会危害性的行为之一。认识错误特别是行为性质错误是罪过阻却事由之一。在一定条件下,被害人承诺与行为性质错误存在竞合问题,此种竞合在不同情况下对行为是否构成犯罪的影响是不同的。 Victim commitment is one of the reasons for the illegality of criminal law in civil law system, and one of the social exclusion behaviors in Chinese criminal law. Cognitive errors, especially the nature of the wrong behavior is one of the reasons for sin. Under certain conditions, the competing nature of the victim’s promise and the nature of the behavior there are competing issues, such competition in different circumstances on whether the crime constitutes a crime is different.