The championship consist of 16 teams playing each other twice for a total of 30 matchdays.
At end of regular season, the top team in the standings is promoted to Liga ASOBAL.
Teams in 2nd, 3rd, 4th and 5th place play the promotion playoff for a single spot in Liga ASOBAL.
Bottom three teams are relegated to Primera División Estatal.
Teams promoted to Liga ASOBAL 2015–16 Teams relegated to 2014–15 Primera Nacional Winner of Promotion playoff final will play in Liga ASOBAL 2015–16 season.