CD Mirandés initially had an affiliation with Miranda FC, but the club folded in 1962. In 1967, a reserve team was founded under the name of CD Mirandés Promesas, but ceased activities three times.
A club under the name of CD Mirandés B first appeared in an official competition in 1998, but stopped playing in 2002. In 2004 the club was refounded and started playing in the La Rioja's Regional Preferente. After its first season, the club passed to play in Regional Aficionados of Castile and León.
After being always in mid-table positions (including a relegation to Primera Aficionados in 2008–09), Mirandés B finished first in the 2013–14 campaign, achieving promotion to Tercera División for the first time ever, after a draw against CD Onzonilla.[1][2]