It was played by the first and second level divisions of the Qatari football league structure.
The cup winner is guaranteed a place in the 2019 AFC Champions league.
The draw of the tournament was held on 11 April 2018.
[1][2] Note: all matches in Qatar time (GMT+3).
Tuesday 10/04/2018 time: 6:30 PM Muaither 0–2 Al-Shamal Monday 23/04/2018 time: 5:15 PM Al-Mesaimeer 0–0 (3–1 p) Al-Ahli (match 1) time: 8:00 PM Al-Wakrah 3–2 Qatar SC (match 2) Tuesday 24/04/2018 time: 5:15 PM Al-Shamal 1–4 Al-Markhiya (match 3) time: 8:00 PM Al-Shahania 1–3 Al-Kharaitiyat (match 4) Saturday 28/04/2018 time: 5:15 PM Al-Khor 1–1 (10–9 p) Al-Markhiya (match 5) time: 8:00 PM Umm Salal 5–0 Al-Kharaitiyat (match 6) Sunday 29/04/2018 time: 5:15 PM Al-Sailiya 0–1 Al-Mesaimeer (match 7) time: 8:00 PM Al-Arabi 4–0 Al-Wakrah (match 8) Thursday 03/05/2018 time 5:15 PM Al-Sadd 4–0 Al-Khor (match 9) time: 8:00 PM Al-Duhail 1–0 Umm Salal (match 10) Friday 04/05/2018 time: 5:15 PM Al-Gharafa 1–0 Al-Mesaimeer (match 11) time: 8:00 PM Al-Rayyan 3–0 Al-Arabi (match 12) Friday 11/05/2018 time: 7:00 PM Al-Sadd 0–1 Al-Duhail (match 13) Saturday 12/05/2018 time: 7:00 PM Al-Gharafa 0–3 Al-Rayyan (match 14) Saturday 19/05/2018 time: 10:15 PM Al-Duhail 2–1 Al-Rayyan