《钦定大清刑律》是清末宪政改革的标志性成果,是我国第一部现代意义上的刑法典,其汲取了现代刑法的基本原则,确立了刑法的罪行法定原则,罪行相适应原则,刑罚人道主义原则。虽其未能实际施行,但是其意义影响深远。本文,主要探讨《钦定大清刑律》的法律效力及其背后的社会原因以及意义。 The “rule of Qin Qing Dynasty” is the landmark achievement of the constitutional reform in the late Qing Dynasty and the first criminal code in modern China. It draws on the basic principles of modern criminal law and establishes the statutory principle of criminal law, the principle of committing crimes, the penalty Humanitarian principles. Although it can not be put into practice, its significance is far-reaching. This article mainly discusses the legal effect of “Qin Da Qing Punishment Law” and the social reasons and significance behind it.