Legends of Badachu have been passed down from generation to generation. Some of them extol beautiful love; some transform nature and build a beautiful home together; and some are about anecdotes of emperors. The most famous one is the legend of the big and small blue dragons in Lushishan Mountain. This legend is not only supported by inscriptions, but also recorded in various historical books, poems and articles. Nowadays, the people in villages such as Chenjiagou and Bandenggou near Badachu are familiar with these legends. Badachu is centered on scenic spots and Buddhist culture. The characteristics of the legends are that they complement the scenery of Badachu and integrate with Buddhist culture, making the legends a materialized carrier and vivid. At the same time, the legends that persuade people to abandon evil and do good are more likely to play an educational effect of punishing evil and promoting good in the land of Buddhist culture. The legend of Badachu integrates Buddhist culture and folk culture, advocates the spirit of abandoning evil and promoting good, and praises the wisdom and kindness of the common people. It has high cognitive and aesthetic value; the Zhengguo Temple in Badachu was built because of the legend of Master Lu and the big and small blue dragons, and is famous in the capital. It is a valuable material for studying folk literature; Badachu's tourism industry has developed rapidly in recent years. Timely excavation and compilation of legends will not only protect folk culture, but will also greatly enhance the cultural connotation of Badachu.