The main building of the museum is divided into four floors. The main courtyard is in the shape of a plum blossom. The first floor is an office, library, and lecture hall. The second floor is for exhibiting calligraphy and painting, bronzes, porcelain, a model of the Houjiazhuang cemetery, and cultural relics unearthed from the tomb. The third floor displays calligraphy and painting, jades, ritual instruments, sculptures, books, documents, inscriptions, embroidery, etc. The second and third floors are exhibition halls in the shape of a Chinese character "器". Huang compared it to a "five-room hall". The fourth floor is for various special exhibitions. Behind the third floor, there is a 26-meter-long corridor leading directly to a cave in the mountain belly. The cave is 50 meters above the ground and contains three arched caves, each 180 meters long, 3.6 meters high and wide. It is divided into many small storehouses with passages in the middle, where various cultural relics are collected in categories.