The bronze statue of Siyang in Shang Dynasty is a bronze ritual vessel and sacrificial vessel in the late Shang Dynasty. 1938 was unearthed at Zhuanlun mountainside (Tanheli site) in Yueshanpu, Huangcai Town, Ningxiang County, Hunan Province, and now it is collected in China National Museum.
The bronze square statue of Shang Yang is the largest existing bronze square statue of Shang Dynasty in China. Its side is 52.4 cm long, its height is 58.3 cm, its weight is 34.5 kg, its neck is long, its circle is high and its neck is towering. Every corner of the statue is made of a sheep. At the four corners of the shoulder, the sheep's head and neck extend out of the device, and the sheep's body and legs are attached to the statue's abdomen and legs. At the same time, Fang Zun's shoulders are decorated with dragons with claws and high-relief snake bodies. In the middle of the statue, where two sheep are adjacent, a pair of horned dragons poked their heads out of the table and snaked out from the right shoulders on both sides of Fang Zun in the middle of the former residence.
The whole bronze statue of Shang Siyang was cast by block mould method, which was accomplished in one go and showed a superb casting level. Known by historians as the "ultimate bronze model", it ranks among the top ten national treasures handed down from generation to generation in China.