Introduction to the main chamber of King Xiao of Liang: The main chamber is the core of the entire tomb. It is rectangular in plan, 9.65 meters long from east to west, 4.7 meters wide from north to south, and 3 meters high. The four walls of the chamber are vertical and the surface is smooth. The bottom of the main chamber is a pit that is 5.45 meters long from east to west, 3.65 meters wide from north to south, and 0.4 meters deep. The bottom of the pit is flat, the four walls are vertical, and the four corners are regular. The east wall of the pit is a sewer leading to the cloister. . There are three ear chambers on the north and south sides of the main chamber.