Neolithic potteries found at the Amsadong site is comb-patterned which is the most representing component in Neolithic culture in the peninsula. Potteries of half cannon ball shaped with rounded or pointed bottom were decorated with geometric designs such as fish bone styles by stamping and engraving with bone and wooden tools. Collection of lines, dots, open dots etc. with some designing, decorated whole surface with three different horizontal sections at the stage of emergence, while zone of decoration was reduced to section near rim leaving blank in lower part of pottery surface as moving to later stage of development.
The most impressive and common desing is ‘fish bone pattern’ of collection of long oblique lines in body section of pottery. In addition, diverse patterns of decoration represent extremely rich individual expressions on pottery for daily use.

Comb-patterned pottery culture in Korea has been often considered as part of Pan-siberian Neolithic pottery culture.
A continuity from those in Manchuria has been observed in some pattern of decoration such as Ji-ja patterned, however variety and fully developed patterns are observed in pottery culture in western central Neolithic complex in the peninsula in which the Amsa neolithic culture is one of the most typical one in this class. Decoration of engravings of geometric designs on pottery appeared very common in Neolithic settlements of fishing-collecting-hunting economy in many parts of World with very distinctive contrast with painted potteries in Neolithic settlements with agricultural subsistence in general. In this regards, the pottery culture of the Amsa Neolithic people is one of the best example of the most developed in a sense of artistic expression in their kind.