The champion won the trophy, a cash prize of €90,152 and the qualification for the next year tournament.
[1] The competition began in late July 2017 with the first games of the Regional stages and finished 11 April 2018 with the national final.
[3] Huétor Tájar was the only registered team and qualified directly for national phase.
The group stage phase was drawn on 4 September by Basque Football Federation.
[7] Teams qualified between second and ninth place in 2016–17 Tercera División Group 3 registered for playing the competition.
[8] The Castile-La Mancha Football Federation announced the Copa Junta de Comunidades de Castilla La Mancha as the regional Copa RFEF qualifying tournament.
[9] The Castile and León Football Federation made the draw of the tournament on 6 September 2017.
[10] The semifinal between Ávila and Real Burgos was canceled by the regional Football Federation due to not having the seconds enough players for playing this tournament.
Arcos (4) Avilés (4) Badalona (3) Cacereño (4) Gimnástica Torrelavega (4) Melilla (3) Olímpic (4) Peña Sport (3) Pontevedra (3) Racing Santander (3) Rápido de Bouzas (3) Rayo Majadahonda (3) Real Unión (3) Tarazona (4) Toledo (3) UCAM Murcia (3) UD San Fernando (4) Villanovense (3) Alavés B (4) Ardoi (4) Betis Deportivo (3) Burgos (3) Cartagena B (4) Escobedo (4) Huétor Tájar (4) Langreo (4) Mallorca B (4) Ontinyent (3) Plasencia (4) San Sebastián de los Reyes (3) SD Logroñés (4) Silva (4) Tenerife B (4) Utebo (4) Vilafranca (4) Villarrobledo (4)