In October 1871, he was raised to Jushii (Junior Fourth Rank), and became a member of the Iwakura Mission led by Tomomi IWAKURA, an ambassador plenipotentiary, which was organized to inspect Europe and the United States and to lay the groundwork for the revision of a treaty.
同年10月、従四位に叙された上で、米欧の視察および条約改正の下準備として岩倉を全権大使とした岩倉使節団が派遣されるにおよび団員となった。