1956年11月,中国邀请苏联专家用半年时间论证了北京地铁的可行性。铁道部、建工局也先后派人去苏联考察地铁和人防工事。1958年成立了铁道部地铁工程局。从1959年开始,搞了好几个地铁试验,挖了两个竖井,一个在公主坟,一个在军事博物馆。但是到了1962年夏天,北京地铁因国家经济困难下马。到了1965年,随着国民经济的好转,也由于中苏关系越来越紧张,战备成了当务之急,一定要 In November 1956, China invited Soviet experts to demonstrate the feasibility of the Beijing Subway for half a year. Ministry of Railways, Construction Bureau has also sent to the Soviet Union to inspect the subway and air defense fortifications. 1958 established the Ministry of Railways Metro Engineering Bureau. Since 1959, several subway tests have been conducted, two shafts have been dug, one at the Princess Tomb and one at the Military Museum. However, by the summer of 1962, Beijing’s subway was disrupted by the country’s economic difficulties. By 1965, with the improvement of the national economy and due to the increasingly tense relations between China and the Soviet Union, combat readiness became a top priority and we must