“借壳”是指技术行动中由于沿袭旧有工艺、方法、制度等,使得遗留赘物得以保留的现象。与借壳现象互为表里的是遗留赘物的存在。洋务运动时期的电报技术引进在技术主体、组织与制度和产业技术目的方面普遍实施了社会借壳。社会借壳对电报技术引进的相对成功起到了积极作用,但同时也在一定程度上延缓了这一时期的中国科学化进程。 “Backshell ” refers to the phenomenon of the legacy of the retained in the technical actions due to follow the old craft, methods, systems and so on. And the backdoor phenomenon is the existence of leftovers. The introduction of the telegram technology during the Westernization Movement carried out social backdoor in the technical subject, organization and system and industrial technical purposes. The social backdoor has played a positive role in the relative success of the telegraph technology introduction, but it also slowed down the process of China’s science during this period to a certain extent.