唐前期的立法活动是以修订律、令、格、式作为主要内容 ,而中唐以后 ,格后敕不仅成为立法活动的主要内容 ,同时其法律效力日益提高。格后敕承袭并发展了格的特点——适应性、变通性、灵活性 ,它能够及时地体现皇帝的意志 ,适应变化了的社会状况。但无论是从体系的完整性还是法律自身的稳定性与严肃性而言 ,均不如唐前期。唐代格后敕的编纂改变了我国封建社会法律编纂的格局 ,给后世以深远的影响 The legislative activities in the early period of the Tang dynasty consisted of amending the law, the order and the style as the main contents. After the middle period of Tang dynasty, the post-gazetteer not only became the main content of the legislative activity, but also its legal effect was increasingly enhanced. After the grid inherits and develops the characteristics of the grid - adaptability, adaptability, flexibility, it can reflect the emperor’s will in time to adapt to changing social conditions. However, no matter from the integrity of the system or the law itself, the stability and seriousness, are not as good as the early Tang. The compilation of Tang Dynasty’s post-Han dynasties changed the pattern of codification of law in feudal society in our country and brought far-reaching influence to future generations