Abstract:Solder from a bronze plate joint excavated from western part of the Xuyang cemetery in Luoyang city was analyzed by metallurgical microscopy and scanning electron microscopy energy spectroscopy, and compared with published research on solder from the late Western Zhou to late Warring States periods. Solders unearthed from the late Western Zhou to late Spring and Autumn periods includes lead, tin and lead-tin alloy solder, with lead-tin alloy solder being the most prevalent, which is high lead and low tin alloy. Compared with lead-tin alloy solder from the Spring and Autumn period, the lead-tin alloy solder from the Warring States period is also more common in the high-lead, low-tin alloy type. The results show that the solder at the joint of the bronze plate excavated from the Xuyang cemetery is pure lead solder, which is consistent with the characteristics of solder from the Spring and Autumn period. Therefore, it is suggested that the solder excavated from the Xuyang cemetery could dated back to the Spring and Autumn period.