2017–18 Mestis season

Imatran Ketterä was promoted from Suomi-sarja at the end of last season, while JYP-Akatemia and Hokki faced bankruptcy and were relegated.

Top eight advance to the Mestis playoffs while the bottom two face the top two teams from Suomi-sarja for a relegation playoff.

Rules for classification: 1) Points; 2) Goal difference; 3) Goals scored; 4) Head-to-head points; 5) Penalty minutes.

The bottom two teams will face the top two teams from Suomi-sarja for a best-of-7 series were the winners will get a place in Mestis for the next season.

No team got relegated from or promoted to Mestis for the next season.