In 758, Nakamaro was appointed to Taiho, or Udaijin (minister of the right), and also given the name of EMI no Oshikatsu by Emperor Junnin, to whom Nakamaro strongly supported to become Emperor.
天平宝字2年（758年）、仲麻呂の推す淳仁天皇を即位させて、太保（右大臣）に任ぜられ、恵美押勝の名を与えられる。