Argentina maintains an embassy in Tokyo and Japan maintains an embassy in Buenos Aires. Diplomatic relations were restored by the signing of the San Francisco Peace Treaty in 1952. Argentine president Arturo Frondizi visited Japan in 1960, and subsequently bilateral trade and Japanese investment into Argentina have increased in importance. Japanese imports were primarily foodstuffs and raw materials, while exports were mostly machinery and finished products.

Members of the Imperial Family of Japan have visited Argentina on a number of occasions, including Prince and Princess Takamado in 1991, Emperor and Empress Akihito in 1997 and Prince and Princess Akishino in 1998. Argentine President Ra?l Alfons?n visit Japan in 1986, as did President Carlos Menem in 1990, 1993 and 1998.