2017 K3 League Basic
| Season | 2017 |
|---|---|
| Champions | Jungnang Chorus Mustang (1st title) |
| Matches played | 80 |
| Goals scored | 267 (3.34 per match) |
| Best Player | Park Jae-cheol |
| Top goalscorer | Roberto Henrique (13 goals) |
2018 → | |
The 2017 K3 League Basic was the first season of the K3 League Basic.
The second division of the K3 League was founded in the name of "K3 League Basic" in 2017, and the bottom eight teams of the 2016 K3 League participated in its inaugural season. Newly formed clubs Busan FC and Pyeongtaek G-SMATT also joined it.
After the regular season, champions were promoted to the first division "K3 League Advanced" and four teams from second to fifth-placed team qualified for the promotion playoffs.