Scanning electron microscopy, metallographic analysis and lead isotope ratio analysis were used to study the arsenic-containing Majing type bronze drums, in order to explore their matierals, craftsmanship and relation with other bronze drums in terms of origin and development. The results show that this type of bronze drum contains a Cu-Sn-As-Pb quaternary alloy. According to literature research, it is common that the ancient Majiang type bronze drums contain arsenic and that the content of arsenic is relatively high. By studying the various components, lead isotope ratios, geology and mineral sources, comparison with arsenic-containing Zunyi type bronze drums revealed a certain relation between the two types of arsenic-containing bronze drums, specifically that the minerals used for making these two types of bronze drum were probably from Wenshan, Yunnan Province and Baise, Guangxi Zhuang Autonomous Region.