Introduction to the stage: The theater building was rebuilt in 1994. It has a two-story double eaves on the top of the mountain. It has five rooms of 20 meters in width and eight bays in depth of 8.60 meters. There is a stage in the middle of the south side, with a width of 5.65 meters and a depth of 4.30 meters. The wing rooms on the east and west sides are two-story watchtowers with three bays facing north and south, with a width of 10.30 meters and a depth of 5.30 meters from east to west.