Copper inlaid bronzes were outstanding representatives of bronze art in the Spring and Autumn Period of China. The casting characteristics of the copper ornamentation can reflect the casting technology. Using visual observation and Xray imaging of the processing details, the casting characteristics of the coppercastbronzes unearthed from Xulou Village in Zaozhuang City have been investigated. Two types of copper ornamentations have been found. The first type has uniform thickness to vessel body, and second type has nonuniform thickness to vessel body. The uniform thickness copper ornamentations were fixed to the vessel body in two ways:as flat connection and grooved connection. The nonuniform thickness copper ornamentations were about half thickness to vessel body, and were also fixed to vessel body in two ways. In the first method, the copper ornamentations fixed to mold core using a copper nail. In the second case, the copper ornamentations were held in the mold using a bronze spacer. After casting, the copper ornamentations were fixed in the bronze body.