嘉峪關位於酒泉以西二十多公里，是明朝長城的西邊關隘，也是長城沿線保留最完整的一座雄關，號稱為「天下第一雄關」。
這座與長城連為一體、由黃土磚石構築而成的古代軍事建築物，分內城、外城、樓閣等，當中又另建有箭樓、敵樓、甕城､角樓、閣樓等，雄偉而堅固。
它由內城、外城、城壕三道防線組成重疊并守之勢，形成五里一燧，十里一墩，三十里一堡，一百里一城的軍事防御體系。
因建在祁連山與馬鬃山兩山脈餘脈的咽喉處，可說是河西走廊西端的"第一隘口"。

嘉峪關是古絲綢之路上的重要一站，留下了許多古跡和珍貴的文物。


Jiayuguan Pass is the first pass at the west end of the Great Wall of China and was built during the Ming Dynasty.
It is located 6 km southwest of Jiayuguan City at the foot of Jiayuguan Hill, between two hills of which the Pass lies,
so earned the name "The First and Greatest Pass under the Heaven".

The Pass is located at the narrowest point of the western section of the Hexi Corridor,
and Jiayuguan often has the meaning of "Nice Valley".
It was also a must point of the ancient Silk Road.