我国刑法和修改后刑诉法都十分强调强制医疗之必要性问题,但是,由于立法的时代背景和法律的性质不同,两部法典的规范内容又表现出一定的差异性,因此,如何正确理解强制医疗之必要性事关强制医疗程序的正常运行。尤其是根据修改后刑诉法的规定,人民检察院是申请强制医疗和履行法律监督职责的法定机关,对此,检察机关及其干警正确理解强制医疗之必要性更为重 However, due to the different background of the legislation and the nature of the law, the normative content of the two codes shows some differences. Therefore, how to correctly understand the meaning of compulsory medical treatment? The need for compulsory medical care is related to the normal operation of compulsory medical procedures. In particular, according to the amended Criminal Procedure Law, the People’s Procuratorate is the statutory body for applying for compulsory medical treatment and performing legal supervision duties. In this regard, the procuratorial organs and their officers and men have a more serious need to correctly understand compulsory medical treatment