From 2000 to 2006， Chengdu Municipal Institute of Cultural Relics and Archaeology and other organizations carried out five excavations at the Yingpanshan Site， covering an area of nearly 2500 square meters. Over 200 stone-coffin tombs and pits with artifacts were excavated.
　　In neat rows， the stone-coffin tombs were dug in the same layer and did not overlapped or disturbed each other. According to the orientation， all the tombs can be roughly divided into two groups. The first group was mainly distributed at the first and forth location， most of which has a direction angel of over150o. The second group was chiefly found at the second and third location， most of which has a direction angle less than 150o.
　　The structure of tombs is relatively uniform， consisting of the stone walls and cover but no bottom board. In some tombs， a stone slab was erected at the head end to form a head nest for placing funerary goods.
　　According to the number of head nest， the tombs are divided into three types. Tombs of Type I have no head nest and can be classified into three classes: Class A with a broad space but less in number， Class B with a small space and distribution in group， and Class C with relatively abundant funerary objects in separated goods pits. Tombs of Type II have one head nest， rich in number but with not many funerary objects. Built with processed stone slabs， Tombs of Typelll have double head nests， a broad tomb space and ample burial goods. The corpses of the tomb occupants were laid in three kinds of way， many of which were arranged in a supine position， with straight limbs and relatively intact skeletons. In the secondary burials， incomplete skeletons were dispersedly placed. Some bodies were put face-down and others might have been dismembered before the burial.
　　Compared with other cemeteries in the upper reaches of Min River， the Yingpanshan cemetery owns some special burial customs， such as leaving numerous potteries at the head or foot ends of the stone coffin， or digging an artifact pit near the tomb. Many small white stones or huge rocks found in the tomb chamber were deemed to be used for worship or some funerary purpose.