The project is part of the renovation of Dachang National Palace. Except for the round lecture hall in the central part, the rest of Dachang National Palace is divided into four functional areas A, B, C and D by the atrium and cross corridors. The arch is used as the space language in Exhibition Museum & Archives Museum. It corresponds to the structural form, and creates a solid sense of space. In terms of material selection, the combination of cement roll and wood veneer presents a comfortable and natural industrial style, but also reflects a heavy and rich sense of history.