It began on 14 July 2017 with the first matches of the preliminary round and ended on 2 May 2018 with the final at PGE Narodowy.
They secured their 19th Polish Cup title ever, after defeating 2–1 defending champions from Arka Gdynia.
The number in brackets indicates what tier of Polish football each team competes in during the 2017–18 season.
Games will be hosted by teams playing in the lower division in the 2017–18 season.
[note 1] Host of match between Puszcza Niepołomice and GKS Tychy (the teams are playing in the same tier) was decided by a draw on 17 July 2017.
[6] The number in brackets indicates what tier of Polish football each team competes in during the 2017–18 season.
[3] Hosts of matches between teams playing in the same tier were decided by a draw conducted on 11 August 2017.
[9][3] Host of first match between teams playing in the same tier (Zagłębie Lubin and Korona Kielce) was decided by a draw conducted on 28 September 2017.