Introduction to Neolithic Cultural Sites: Stone axes, stone chisels, half-moon-shaped double-hole stone knives, broken-line embossed pottery, flow vessels, handle vessels, round-bottomed vessels, etc. were unearthed from the Cangshan Neolithic Cultural Relics. It is a typical feature and forms a self-contained system of Neolithic alchemy in the Erhai area. A total of 21 Neolithic cultural sites were discovered.