本文从贝卡利亚“违背人的自然感情的法律是无益的,最终也是有害的”的结论出发,对我国现行的有关制度进行举例分析,如犯罪嫌疑人如实回答的义务(结合刑讯逼供)与证人如实作证义务及伪证罪(结合证人特权规则),试图揭示法律是最低的道德,法律应该尊重人性。 This article starts from the conclusion that Beccaria “law that violates human’s natural feelings is useless, and ultimately harmful ”, and gives an example analysis of the current relevant system in our country, such as the duty of criminal suspects to answer truthfully Extorting Confessions) and witness truthfully testifying obligations and perjury (in combination with the rules of the prerogatives of witnesses), trying to reveal that law is the lowest morality and the law should respect humanity.