Statistics of Ekstraklasa for the 1988–89 season.

It was contested by 16 teams, and Ruch Chorzów won the championship.

After the end of the season, play-offs played for two places in the first league in the 1989–90 season between teams from places 13-14 in the first league and runners-up in the 2nd league groups:[2] Pogoń Szczecin and GKS Jastrzębie did not hold places at the highest league level.