西汉时设置的玉门关到底在何方?有人说唐代人已不能确指。其实班固著《汉书》时恐怕就已经不知道它的具体位置了。所以留给后世的仅是“列四郡,据两关”。唐代人在注《汉书》时也只能说“在敦煌以西”。宋代以后只有各持己说。这个问题,自20世纪初敦煌汉简发现以来,史学界进行了较长时间的研究,发表了不少文章,并普遍认定现今小方盘城就是玉门关。这个结论是正确的,无需再存 When the Western Han Dynasty set Yumen Guan in the end where? Some people say that the Tang Dynasty can not be sure. In fact, class fixation “Han” I am afraid I do not know its specific location. Therefore, only for future generations left “four counties, according to the two ”. When the people in the Tang Dynasty noted “Han Shu”, they could only say “west of Dunhuang”. After the Song Dynasty only the dissenters said. This problem, since the discovery of the Dunhuang Bamboo Slips in the early 20th century, the historians conducted a long period of research and published many articles. It is generally accepted that the present small square plate city is the Yumen Pass. This conclusion is correct, no longer need to save