所谓碑拓,也叫拓本,是指以湿纸覆在碑石上,用墨打拓其文字或图形而形成的黑白分明的本子,而这种对碑石的艺术再现与传真手法,就是拓碑技术。早在南北朝时期,拓碑似乎就已经有了雏型,如齐梁宫中的所存的《一字石经》、《三字石经》等卷本就是佐证。而拓碑技艺的真正成熟,则是在唐朝。如天宝四年的《石经孝经》附刻有李齐石奏表,表中有“臣谨打本分成上下卷,于光顺门奉献以闻”云云。再如武德九年的《孔子庙堂碑》,清人王澍在其《虚舟 The so-called monument extension, also known as rubbings, refers to wet paper covered in stone, with ink to develop its text or graphics and black and white form, and this monument on the art of reproduction and fax techniques, is the landmark technology . As early as the Northern and Southern Dynasties period, it seems that there is already a prototype of Extension Monument. For example, the stored “Scriptures of Stone Scriptures” and “Book of Stone Scriptures” in Qiliang Palace are evidence of this. The real skill of extension monument mature, it is in the Tang Dynasty. Such as Tianbao four years of “Shi Jing Xiao Jing” with engraved with Li Qi Shi played the table, the table has “Chen Ben this fight into the volume, in the light of dedication to smell ” and so on. Another example is Takenori nine years of “Confucius Temple monument”, Qing Wang Shu in its "virtual boat