Longquan Temple, also known as the Hall of the Dragon King, is located in the northwest of Dabei Temple. In 1425, during the Hongxi period of Emperor Renzong of the Ming Dynasty, the "Huiyun Zen Forest" was built. In the second year of the Shunzhi era of the Qing Dynasty (1645), a clear spring was found in the area, and a temple of the Dragon King was built. During the Daoguang period of the Qing Dynasty, the two places were united into one and became Longquan Temple. There are five courtyards in the temple, divided into three levels. In addition to the main hall of the Dragon King Hall, there are also Woyou Pavilion, Spring Water Pavilion, Miao Xiang Courtyard and Hua Zu Courtyard. The pine and cypress in the courtyard are as high as clouds, making the temple cool in summer and suitable for cooling off. The mountain gate is small, and when you enter, you can see a pond. Spring water flows out from the dragon mouth in the pond and is injected into the pond. The spring is called "Dragon Spring" and does not dry up in four seasons. The water has been tested as natural high strontium mineral water. There is a small pavilion to the left of the pool, and above is the Dragon King Hall. The north courtyard was originally called Huiyun Temple. The "Dragon Spring Tea House" in the courtyard has a long history and has a great influence in the capital, and is open throughout the year. The famous tea made from the sweet and cold spring water has a special taste. There are many repeat customers, especially in the summer and autumn.