| Competition: | Hong Kong Second Division |
| Season: | 2017-18 |
| Winners: | Happy Valley |
| Promoted: | Happy Valley Central & Western |
| Relegated: | Kwai Tsing GFC Friends Sai Kung Fukien |
| League Topscorer: | Chung Man Ho (Central & Western) Lam Wai Lok (Tuen Mun) (14 goals) [1] |
| Biggest Home Win: | (8 October 2017) |
| Biggest Away Win: | (11 March 2018) |
| Highest Scoring: | (13 May 2017) |
| Matches: | 182 |
| Total Goals: | 503 |
| Longest Wins: | 8 matches Happy Valley |
| Longest Winless: | 9 matches Sai Kung |
| Longest Losses: | 5 matches Sai Kung Fukien |
| Prevseason: | 2016–17 |
| Nextseason: | 2018–19 |
The 2017–18 Hong Kong Second Division League was the 4th season of Hong Kong Second Division since it became the third-tier football league in Hong Kong in 2014–15.[2] The season began on 3 September 2017 and ended on 13 May 2018.
Promoted to First Division
Relegated to Third Division
Relegated from First Division
Promoted from Third Division