东汉郭宪的《汉武帝别国洞冥记》记载了很多域外事物,本文考出的有西域的蓝纹奶酪、啤酒、齐墩树、哈密瓜、阿勃参树,东北海外的火山、蜂鸟、巨螯蟹,西南边疆的茶、东南亚的犀角、珍珠、石棉、亚洲巨龟,等等。此书涉及地域广泛,很多内容不仅是在中国古代文献首次出现,甚至可能是唯一记载,所以价值很高。 In the Eastern Han Dynasty, Guo Xian’s “Han Wudi Kingdom Cave” recorded a lot of extraterrestrial things, this article examines the Western blue cheese, beer, Qidun tree, cantaloupe, Aberdeen tree, volcano northeast overseas, Giant crabs, tea in the southwestern frontier, rhinoceros horn in Southeast Asia, pearl, asbestos, giant Asian turtle, and many more. This book covers a wide range of areas, a lot of content is not only the first time in ancient Chinese literature, and may even be the only record, so the value is high.