Xilongtan Sanjiao Temple is located at the foot of the slope of Xilongtan in Kaiyuan City. It was built in the early Ming Dynasty and was originally named Guanyin Temple. In the 24 years of Qingguangxu (1898), three main halls were rebuilt. The wooden structure of the hard mountain top was called the Sanjiao Temple because of the inner plasticization of the three gods of Guanyin, Wenchang Emperor and Zhenwu ancestors.