Introduction to Liu Bei’s Pass Sculpture: After Liu Bei established his capital in Chengdu, he established Jiange County in the 22nd year of Jian’an (217), which was affiliated with Jianmen Pass and strengthened the defense of Jiange. Not only that, but also As the center, Jiange connects more than a thousand miles from Hanzhong to Chengdu into a whole, ensuring the safety and security of the Jiange Road from Chengdu to Zitong, passing through Jiameng and Baishui, and ending at Yanganguan and Hanzhong in Mian County, Shaanxi. The smooth flow laid the foundation for Zhuge Liang's expedition to Qishan and Jiang Boyue's expedition to the Central Plains.
According to relevant records, before Liu Bei proclaimed himself emperor, he visited Jianmen Pass four times. In addition, the 65th chapter of "The Romance of the Three Kingdoms" narrates that Liu Bei returned to Jiameng Pass to see Liu Zhang on his way to Chengdu to attack Liu Zhang. Zhang Fei and Ma Chao fought each other six times in total.