| Competition: | Finnish League Division 1 |
| Season: | 1988 |
| Winners: | Jaro Pietarsaari |
| Promoted: | Jaro Pietarsaari |
| Relegated: | GrIFK Kauniainen FinnPa Helsinki TPV Tampere |
| Prevseason: | 1987 |
| Nextseason: | 1989 |
League table for teams participating in Ykkönen, the second tier of the Finnish Soccer League system, in 1988.
Promotion replay: Jaro Pietarsaari - MyPa Anjalankoski 1-1 aet., 3-2 pen.
Relegation replay: VanPa Vantaa - GrIFK Kauniainen 3-0
KuPS Kuopio stayed in Premier Division.