Shangshi Tang was built by Tang Xuanzong Li Longji for the inner officials of the Suishi Hot Spring Palace, for the inner officials to wash the hot springs. It is located about ten meters west of the Star Tang. The Shangshi Tang plane is rectangular, two-story table, about 30 square meters in area, all made of bluestone, divided into two pools by a stone beam. It is much smaller in scale than other stars.