Pottery in Neolithic Hongshan Culture. Hongshan Culture was discovered in Hongshan, Chifeng, Inner Mongolia in 1935 and named as 1954. Its distribution range starts from Jinying River Basin in Chifeng, starts from Urjimulun River Basin in Zhaowudameng in the north, reaches Chaoyang, Lingyuan and Hebei in the south, and reaches Zhelimumeng and Jinzhou in the east. About 3500 BC. There are many kinds of pottery in Hongshan Culture, all of which are handmade. The wall of pottery is made of pottery plate, and the bottom of pottery is made separately and then connected with the wall. Pottery is divided into mixed sand pottery and argillaceous pottery, both of which are rough. There are traces of woven fabric on the bottom of sand pottery, which were printed on the woven fabric mat in a wet state after the pottery blank was made. After the ceramic body is formed, it should be beaten and polished, the exterior should be decorated with patterns, and the inner wall of the ware should be polished. Open containers of argillaceous pottery, such as the inner walls of bowls, should also be ground. Large vessels such as cans and urns have small mouths, which are not convenient for pressure grinding, so scraping molding is adopted, and the traces of scraping are clearly visible. Some objects still have traces of wet hands on their surfaces. Clay pottery is used as a container, and sand pottery is used as a cooker. In the ruins of Shuiquan, some pottery was found to have smoke on its surface. The argillaceous pottery in Hongshan Culture is red and the sandy pottery is brown, rough and dark in color. The main objects of sand-containing pottery are big mouth, deep belly, folded mouth and inclined mouth pot, which are characterized by big mouth, small flat bottom, curved abdominal wall and woven marks on the bottom of the wall. Clay pottery includes pots, bowls, jars and urns. Bowls are divided into deep abdomen and shallow abdomen, as well as folded mouth and folded abdomen. The mouth of the bowl is coated with red sauce along a circle, which is called red top style. There are small mouth and ears cans, long neck and deep belly cans, and closed cans. The shape of the urn is very large, and the shape is characterized by a small mouth and a deep belly. The decoration of Hongshan Culture pottery is very distinctive, including relief pattern, carved pattern, additional pile pattern and painted pattern. The patterns pressed by sharp tools are mostly horizontal zigzag lines, and a few are vertical zigzag lines, zigzag lines composed of grate points and straight lines carved into groups. Ornaments are mainly decorated on mixed sand pottery, and a small amount is found in muddy pottery. Some additional pile patterns are strip-shaped and some are tumor-shaped, which mostly appear in the mouth or abdomen of sand-filled pottery. Painting is mainly decorated on fine argillaceous pottery, first painting, then grinding and pressing, and then firing. There are two colors, black and purple, and the patterns are mainly composed of long and short lines, such as triangle patterns, diamond patterns, scale patterns and vortex patterns. Six kiln sites were found in Silingshan Site in Aohan Banner. Pottery kiln consists of fire chamber, fire channel and kiln chamber, some of which are single kiln chamber and some are double kiln chamber. The former has 2~4 kiln columns in the room. Some single kiln chambers are horseshoe-shaped, with a length of1.4m from north to south and a width of1.38m from east to west. The kiln room and columns are all made of stone, and the surface is grass and mud. The fire chamber 1.2, with a width of 0.6~0.8 m, is inclined. The double kiln chamber is rectangular, with a length of 1 from north to south and a width of 2.7m from east to west. It has eight kiln columns, all of which are earth-rock structures with grass and mud on the surface, and the two chambers are divided into two sides. Continuous kiln chamber is the expansion and development of single kiln chamber.