The 2017–18 CERS Cup is the 38th season of the CERS Cup, Europe's second club roller hockey competition organized by CERH.
All the thirty two teams will play a double-legged knockout tournament with the only rule of avoiding that two teams from the same nation play together in the first round.
[1] Thirty two teams from eight national associations qualified for the competition and were confirmed on 19 September 2017.
[1] League positions of the previous season shown in parentheses.
The draw was held at CERH headquarters in Lisbon, Portugal, on 23 September 2017.