The Mongolia men's national under-18 ice hockey team played its first game in 2000 against New Zealand during the 2000 IIHF Asian Oceanic Junior U18 Championship Division II tournament being held in Bangkok, Thailand.

[1][3] During the tournament Mongolia achieved their largest victory in international participation when they defeated Thailand 12–1.

[1] At the 2002 IIHF Asian Oceanic U18 Championship Mongolia finished fourth after winning two of their five games, beating both Chinese Taipei and Thailand.

[4] The following year they again finished in last place and also suffered their largest defeat in international competition after losing to Australia 0–33.

[5] In 2011 Mongolian under-18 were set to play at their fourth World Championships however the Mongolian Ice Hockey Federation had to withdraw both the under-18 team and the men's senior team from their respective tournaments due to financial reasons.