To find out the wood species used in national structures late Joseon Dynasty, 11 volumes of Yeonggeon-Uigwes were reviewed. It was confirmed that mainly for repair and restoration palaces, shrines, fortresses. In 17th to 20th centuries, specified have revealed either hardwood or softwood. As species, Juglans mandshurica, Zelkova serrata, Fraxinus rhynchophylla, Betula schmidtii, Paulownia corea...