The Wolseong Wooden moat is a unique example. Which is a vertical wall made of wood. It shows a changing point how to make the wall by digging a hole and stacking stones vertically. This study tried to to make a assumption about the construction process of the wooden structure found in the Wolseong pit moat. I sorted out wooden elements and then analyzing these features and compared with the results of the excavation. After I made 3D modelling in the order to it was made. This moat is not only a function of digging up the ground to trap water, but also a technique of building structures to maintain walls. It is a valuable material that can show the woodworking engineering techniques of the Silla Dynasty.

Abstract
1. 서 론
2. 선행연구 고찰
    2-1. 국내 고대 목조시설 조사와 연구
    2-2. 일본 고대 목조시설 연구
    2-3. 월성 해자 변천 과정과 출토 목재 연구
3. 월성 해자 발굴조사 결과검토
    3-1. 월성과 석축해자 조성현황
    3-2. 목조해자 출토현황
4. 목조해자 축조과정 추정과 용도
    4-1. 목조해자 축조과정 추정
    4-2. 목조해자의 용도와 의미
5. 결 론
참고문헌

• 최향선(국립문화재연구원 학예연구사) | Choi Hyang Seon Corresponding Author
• 진혜진(국립경주문화재연구소 연구원) | Jin Hye Jin