2017–18 Premier League Tournament Tier B

The 2017–18 Premier League Tournament Tier B was the second division of the 30th season of first-class cricket in Sri Lanka's Premier Trophy. The tournament was contested by nine teams, starting on 15 December 2017 and concluding on 18 February 2018. Negombo Cricket Club won the tournament and secured promotion to Tier A, after finishing top of the points table ahead of Lankan Cricket Club.

2017–18 Premier League Tournament Tier B

The 2017–18 Premier League Tournament Tier B was the second division of the 30th season of first-class cricket in Sri Lanka's Premier Trophy. The tournament was contested by nine teams, starting on 15 December 2017 and concluding on 18 February 2018. Negombo Cricket Club won the tournament and secured promotion to Tier A, after finishing top of the points table ahead of Lankan Cricket Club.