Jonam mountain is located in Gung nam Hamangun gayaeup, and it is 139.4m above sea. Most of Haman area consists of hill and mountains and Pinus densiflora Sieb. et Zucc,Quercus acutissima Carruth, Quercus variabilis Bl, Quercus mongolica Fisch and Robiniapseudoacacia L are distributed. Sungsan mountain fortress wall is designated as a national historical spot 67th and our laboratory excavated and surveyed Sungsan mountain fortress wall from 1991 to 1994.Especially, we confirmed mud layer in 1992 and excavated wooden remains such as wooden strip with inscription and so on. Also, wooden strip with inscription and the wooden remains of the type which is various such as brush, knife, various club, vessel, awl were excavated in 2002.After classifying remains on the spot, they were washed. We found three pieces of wooden strip during washing, and three pieces of wooden strip during conservation processing. Also, we confirmed others. Until now, we have processed 8000 wooden remains, and we are processing about 1500wooden remains.