本文重新分析了三星堆遗址祭祀坑出土的部分青铜器,分析方法包括金相学、元素组成和铅同位素比值。并将分析结果同以前发表的数据进行了对比。结果显示所有青铜器都是铸造成形的,同时显微结构又显示在埋藏后铜器都经过了焚烧。两种文化特色风格的铜器都是使用殷商时期最普遍的铅锡青铜合金铸造的。二者的铅锡含量不同,本地风格的铜器铅含量普遍高于中原特色的铜容器,而锡含量则相对低于后者。铅同位素比值的分析则揭示出两种文化的铜器可能拥有同一个来源。而铜像和面具等大量三星堆文化的铜器很可能是在非常短暂的时间内铸造并埋葬的。 This paper reanalyses some of the bronzes unearthed in the sacrificial pit of the Sanxingdui ruins. The analysis methods include metallography, elemental composition and lead isotope ratio. The results of the analysis are compared with the previously published data. The results showed that all the bronzes were cast and the microstructures showed that the burned bronze was incinerated. Both styles of culturally distinctive bronze ware are cast using the most common lead-bronze alloy of the Shang period. Both lead-tin content is different, the local style of copper lead content is generally higher than the Central Plains characteristics of copper containers, while the tin content is relatively lower than the latter. Analysis of lead isotope ratios reveals that both cultures may have the same source of copper. However, a large number of Sanxingdui bronzes, such as bronze statues and masks, are likely to be cast and buried in a very short period of time.