The Great Wall of Qi, which was listed as a national key cultural relics protection unit at the beginning of the 20th century, has a total length of 6 18.9 km. It starts from Xiaoli Town, Changqing County on the east bank of the Yellow River in the west, meanders in the middle and low mountainous areas at the west foot of Mount Tai in the east, fluctuates on the watershed of Taiyi Mountain, and reaches the seashore of Huangdao District in Qingdao on the west coast of the Pacific Ocean at the easternmost end, and is known as the Great Wall of thousands of miles. It is the product of Qi's struggle for hegemony and defense against the enemy during the Spring and Autumn Period and the Warring States Period, and it is condensed into an ancient war history with smoke billowing and banners hunting. It winds across Qilu Dadi 15 18 peak, from west to east, in Changqing, Feicheng, Taishan District, Tai 'an suburb, Licheng, Zhangqiu, Laicheng, Boshan, Zichuan, Yiyuan, Linqu, Yishui, Anqiu, Juxian, Wulian, Zhucheng and Jiaochuan.