Abstract:A large number of Shang bronzes are unearthed in Hanzhong, Shaanxi province. Among them, a Li vessel with four legs in Chenggu county is the only one that has been seen in China. This vessel is uniquely shaped and exquisitely decorated. Chemical compositions, metallographic structures and lead isotope ratios of Li vessel were analyzed. The results show that this vessel is made of Pb-Sn bronze with high lead content by casting. The content of silver in trace elements is high, which may be introduced by lead ores. The lead isotopic ratios are highly radiogenic lead, which are common in Shang bronzes, and provinance of lead ores are the same as that of bronzeware unearthed in Zhengzhou, Panlongcheng and Yin Ruins, indicating a close relationship with Shang culture. Age and origin of Li vessel are discussed in terms of alloy technology and lead isotope ratios.