Abstract: In recent years，disagreement on whether to abolish crime of whoring an underage girl has never stopped. Since its establishment，the law clause has caused increasingly prominent social problems，which arouses a lot of questions. In the criminal law of China，this law clause defines young girls’ consent and fault liability as a differential protection condition，which differentiates this crime with the crime of raping an underage girl. This law clause violates the principles of “children first” and “the best interests of the child” in UN Convention on the Rights of the Child. Singling this crime out hinders development of physical and mental health of young girls involved，and results in negative social environment to some extent. Comparatively light punishment imposed on the criminals takes justice away from criminal law. In order to effectively safeguard the sexual rights of young girls，we should on the one hand include the “crime of whoring an underage girl” into “the crime of raping an underage girl” in legislation，and on the other hand better protect the sexual rights of young girls by means of establishing the juvenile social assistance system and improving sex education，etc.

Key words: sexual crimes, crimes of whoring girls under 14 years old, the crime of raping an underage girl, sexual rights of young girls, Convention on the Rights of the Child