Abstract: The No.l and No.2 sacrificial pits of Sanxingdui were excavated in 1986. Notonly do they have similar shape and direction, they yielded basically the same cultural relics aswell. Moreover, some cultural relics were unearthed in groups of three or five. In addition, differentparts of the same kind of bronze wares were found in two pits respectively. Therefore, it can bedetermined that the No.1 and No.2 sacrificial pits existed simultaneously, namely the first phase ofthe new fourth period of the Sanxingdui site, which is roughly equivalent to the second period of Yin Ruins.In 2014, a large-scale ash pit (H105) was discovered by Sichuan Province Institute of CulturaRelics and Archaeology at the Qingguanshan location of Sanxingdui site. The gold wares, jadezhang and turquoise beads unearthed from it were appendage of the large-scale buildings in thenorth. Intact potteries unearthed indicate that it dates to the first phase of the new fourth period ofSanxingdui site, which is close to the age of the No.1 and No.2 Sanxingdui sacrificial pits.Based on the above findings, the Sanxingdui site had not been abandoned in the first phase ofthe new fourth period, it remained the capital of the ancient Shu State at that time, which correctsthe previous view that the Sanxingdui site was abandoned during the transition from the third period to the fourth period.The remains of the Jinsha site can be divided into four stages. Obvious changes had takenplace in both the scale of' the site and the composition of the remains in the third stage, which waslater than the new fourth period of the Sanxingdui site. The nature of fisha site had become thecapital city. Therefore, Jinsha site started to served as the capital city of ancient Shu no later thanthe end of the new fourth period, which can basically links up with the time of abandonment ofSanxingdui site.