The platforms of the Joetsu Shinkansen, which are located on the third floor of the elevated station building, currently consist of two platforms for two tracks with the tracks for passing trains located in between; however, they are allocated in anticipation of possible expansion to two island-style platforms for four tracks.
新幹線ホームは高架駅部3階にあり、中央の通過本線を挟んでプラットホーム形状と配置2面2線だが、島式ホーム2面4線とすることを可能とした配置となっている。