| Competition: | Montenegrin Second League |
| Season: | 2017–18 |
| Winners: | Mornar |
| Promoted: | Mornar Lovćen |
| Relegated: | Ibar Cetinje Čelik |
| League Topscorer: | Elie Matuoke (Mladost Lješkopolje) |
| Biggest Home Win: | |
| Biggest Away Win: | |
| Highest Scoring: | |
| Matches: | 198 |
| Total Goals: | 488 |
| Prevseason: | 2016–17 |
| Nextseason: | 2018–19 |
The 2017–18 Montenegrin Second League was the 12th season since the establishment of the Montenegrin Second League. The season ran from 13 August 2017 to 26 May 2018.
A total of 12 teams participated in this edition of the Second League. The new members were FK Lovćen, FK Jedinstvo and FK Bokelj who was relegated from 2016–17 Montenegrin First League, and winners of Montenegrin Third League playoffs - OFK Mladost Lješkopolje.
This was the last season of Second CFL with 12 participants, as the participants would be reduced to 10. At the end of the season, three worst-placed teams on the table would be directly relegated to the Montenegrin Third League.
The following 12 clubs competed in this season.[1]
| Club | City | data-sort-type="number" | Finishing in 2016–17 | Stadium |
|---|---|---|---|---|
| Berane | 6th | Gradski stadion (11,000) | ||
| Kotor | Stadion pod Vrmcem (2,000) | |||
| Cetinje | 7th | Sveti Petar Cetinjski (5,192) | ||
| Nikšić | 9th | Stadion Željezare (2,000) | ||
| Rožaje | 2nd | Bandžovo brdo (4,000) | ||
| Igalo | 8th | Solila (1,000) | ||
| Bijelo Polje | Gradski Stadion (5,000) | |||
| Plav | 5th | Stadion pod Racinom (5,000) | ||
| Cetinje | Sveti Petar Cetinjski (5,192) | |||
| Lješkopolje | Stari Ribnjak Stadium (1,200) | |||
| Bar | 4th | Topolica (2,500) | ||
| Ulcinj | 3rd | Stadion Olympic (1,500) |
The schedule consists of three rounds. During the first two rounds, each team played each other once home-and-away for a total of 22 games. The pairings of the third round were then set according to the standings after the first two rounds, giving every team a third game against each opponent for a total of 33 games per team.
The 3rd-placed team (against the 10th-placed team of the First League) and the runners-up (against the 11th-placed team of the First League) will both compete in two-legged promotion play-offs after the end of the season.
Lovćen won 2–1 on aggregate.----Petrovac won 5–2 on aggregate.
| Rank | Scorer | Club | Goals |
|---|---|---|---|
| 1 |  Elie Matuoke | Mladost Lješkopolje | 23 |
| 2 |  Mehmed Divanović | Otrant-Olympic | 14 |
| Dejan Pepić | Bokelj | ||
| 4 | Denis Džanović | Otrant-Olympic | 12 |
| Ivan Jablan | Lovćen | ||
| 6 | Ivan Asanović | Berane | 11 |
| Denis Banda | Jedinstvo | ||
| Milivoje Mrdak | Jedinstvo | ||
| Goran Vujović | Lovćen | ||
| 10 | Ivan Bulatović | Bokelj | 10 |
| Filip Kalačević | Mornar |