The size of the construction projects become huge and complex, and the depth of excavation for the underground structures become deeper. Also the working area is not enough for loading materials and temporary facilities. This is the most case of recent construction projects in downtown area. Top-down construction method is most useful for this kind of construction projects. Top-down construction method consist of supporting method, retaining wall type, foundation type and construction direction such as up-down or up-up. construction managers have to select elements for top-down construction method in planning phase. This study is to suggest the selection model for the top-down construction method. The case study is conducted for evaluating this model.