Each season, the top-finishing team in the Primera FEB are automatically promoted to the Liga ACB.
The teams that finish the season in 2nd to 9th place enter a playoff tournament, with the winner also gaining promotion to the Liga ACB.
Club Melilla Baloncesto is the only team that played all seasons of the league.
In 2007, the Spanish Basketball Federation decided to create a third LEB with 18 teams, like the other two.
In 2009, after two seasons, LEB Bronce was removed due to the difficulties of the teams that enjoyed the new league.