| Competition: | Vietnamese National Football Second League |
| Season: | 2018 |
| Winners: | An Giang Phù Đổng |
| Promoted: | An Giang Phù Đổng Phố Hiến |
| Relegated: | none |
| Matches: | 75 |
| Total Goals: | 279 |
| Biggest Home Win: | Lâm Đồng 8-0 Fishsan Khánh Hòa Lâm Đồng 9-1 Nam Định B |
| Biggest Away Win: | Fishsan Khánh Hòa 1-7 Bình Thuận |
| Highest Scoring: | Lâm Đồng 9-1 Nam Định B Nam Định B 5-5 Fishsan Khánh Hòa (10 goals) |
| Longest Wins: | Bà Rịa Vũng Tàu (7) |
| Longest Unbeaten: | Phố Hiến (11) |
| Longest Winless: | Nam Định B (12) |
| Longest Losses: | Nam Định B (8) |
| Prevseason: | 2017 |
| Nextseason: | 2019 |
The 2018 Vietnamese National Football Second League was the 20th season of the Vietnamese National Football Second League. The season began on 25 April 2018 and finished on 15 July 2018.
In this season, there are 13 teams divided in two groups in qualifying stage according to geographic region. The top 2 teams of each group will be qualified to final round.In final round, 4 teams will play 3 matches:[1]
The winners of each match will promote to 2019 V.League 2. There are no teams relegated to 2019 Vietnamese Third League.[2]
The following teams have changed division since the 2017 season.
Promoted from Vietnamese Third League
Relegated from V.League 2
Team transfer
Relegated to Vietnamese Third League
Promoted to V.League 2
Team transfer
Withdrew
An Giang promoted to 2019 V.League 2.
Phù Đổng promoted to 2019 V.League 2.
Phố Hiến promoted to 2019 V.League 2.