The Republic of San Marino signed the Mine Ban Treaty on 3 December 1997 and ratified it on 18 March 1998, becoming a State Party on 1 March 1999. San Marino has never used, produced, exported, or imported antipersonnel mines, including for training purposes. San Marino believes that existing legislation is sufficient to enforce the antipersonnel mine prohibition domestically. In 2011, San Marino submitted its ninth Mine Ban Treaty Article 7 report.

San Marino did not attend any Mine Ban Treaty meetings in 2010 or the first half of 2011.

San Marino is not party to the Convention on Conventional Weapons.