| Opened | 1912 - 1913 | Tracks | Single track |
| Mapion | Major stations | Connecting lines | Km | City | Prefecture | |
| Map | Map | Miyakonojō | JR Kyūshū: Nippō Hon | 0.0 | Miyakonojō-shi | Miyazaki |
| Map | Map | Kobayashi | | 34.8 | Kobayashi-shi | |
| Map | Map | Yoshimatsu | JR Kyūshū: Hisatsu | 61.6 | Yūsui-chō | Kagoshima |
| Type | Origin - Major stops - Destination | Trains per day | Fastest train | Average speed |
|---|---|---|---|---|
| Local Futsū 普通 | Miyasaki - Miyakonojō - Yoshimatsu - Hayato | 1 | 5h01 | 30 km/h |
| Miyakonojō - Yoshimatsu - Hayato | 5 | 2h22 | 42 km/h | |
| Miyakonojō - Yoshimatsu | 5 | 1h28 | 42 km/h |
