青铜文化在中国历史上具有极其重要的地位,中国的青铜时代夏、商、周三代曾经辉煌一时,秦汉以后则日趋衰落。清代嘉道年间,出现了一种对青铜器器物形象的传拓——全形拓,后又结合照相的技术和运用西方透视原理,全形拓技术不断完善。由于全形拓技法的繁复以及摄影等科技的进步,导致全形拓实用价值降低,掌握和从事全形拓的人员减少以致濒临失传。全形拓技法的传承问题,已成为目前文博界的关注重点。 Bronze culture in the history of China has an extremely important position, China’s Bronze Age summer, Shang and Zhou Dynasties had a brilliant moment, Qin and Han dynasties are declining. In the Qing dynasty, there was a kind of propagation of the image of bronze artifacts - the whole shape extension, the combination of photographic techniques and the application of the Western perspective principle. Due to the complexity of all-terrain extension technique and the advancement of science and technology such as photography, the utility value of all-terrain extension has been reduced, and the number of people who have mastered and engaged in full extension decreases so that they are on the verge of losing their passions. Inheritance of all-terrain extension techniques, has become the focus of the current literary community.