The women's long jump event at the 1998 World Junior Championships in Athletics was held in Annecy, France, at Parc des Sports on 30 and 31 July.
| Gold | Peng Fengmei | |
| Silver | Lu Xin | |
| Bronze | Maria Chiara Baccini |
31 July
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | ||||||||
| align=left | align=left | | 6.59 (w: +1.2 m/s) | 6.39 (w: -0.5 m/s) | x | 6.47 (w: -0.1 m/s) | 6.47 (w: -0.4 m/s) | x | 6.59 (w: +1.2 m/s) | ||||
| align=left | align=left | | 6.55 (w: +1.0 m/s) | 6.57 (w: +0.4 m/s) | 6.36 (w: 0.0 m/s) | 6.32 (w: +0.2 m/s) | 6.23 (w: -0.8 m/s) | 6.54 (w: +1.0 m/s) | 6.57 (w: +0.4 m/s) | ||||
| align=left | align=left | | 6.42 (w: +0.3 m/s) | 6.26 (w: +0.8 m/s) | 6.55 (w: -0.4 m/s) | x | x | x | 6.55 (w: -0.4 m/s) | ||||
| 4 | align=left | align=left | x | 5.95 (w: -1.1 m/s) | 6.49 (w: +0.7 m/s) | 6.04 (w: +0.2 m/s) | x | 6.52 (w: +0.1 m/s) | 6.52 (w: +0.1 m/s) | ||||
| 5 | align=left | align=left | 6.15 (w: +0.9 m/s) | 6.42 (w: -0.1 m/s) | 6.20 (w: +1.1 m/s) | 6.11 (w: +0.7 m/s) | x | x | 6.42 (w: -0.1 m/s) | ||||
| 6 | align=left | align=left |  | 6.20 (w: +1.9 m/s) | 6.15 (w: 0.0 m/s) | 6.27 (w: +0.8 m/s) | 6.08 (w: +0.1 m/s) | 6.01 (w: -1.5 m/s) | 6.16 (w: -0.5 m/s) | 6.27 (w: +0.8 m/s) | |||
| 7 | align=left | align=left |  | x | 6.23 (w: +0.3 m/s) | x | 6.03 (w: +1.3 m/s) | 6.09 (w: -0.9 m/s) | 6.25 (w: +0.2 m/s) | 6.25 (w: +0.2 m/s) | |||
| 8 | align=left | align=left | 6.23 (w: +0.8 m/s) | x | 6.14 (w: +0.6 m/s) | x | 5.57 (w: -0.9 m/s) | 5.63 (w: -0.5 m/s) | 6.23 (w: +0.8 m/s) | ||||
| 9 | align=left | align=left |  | 6.19 (w: +1.1 m/s) | 6.06 (w: -0.1 m/s) | 6.01 (w: +1.3 m/s) | 6.19 (w: +1.1 m/s) | ||||||
| 10 | align=left | align=left | | 6.18 (w: +0.8 m/s) | 6.18 (w: +1.7 m/s) | 5.97 (w: +0.6 m/s) | 6.18 (w: +0.8 m/s) | ||||||
| 11 | align=left | align=left |  | x | 5.84 (w: -0.9 m/s) | 5.67 (w: -0.3 m/s) | 5.84 (w: -0.9 m/s) | ||||||
| 12 | align=left | align=left |  | 5.75 (w: +1.0 m/s) | x | 5.73 (w: +0.3 m/s) | 5.75 (w: +1.0 m/s) | ||||||
30 Jul
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 6.38 (w: -0.3 m/s) | - | - | 6.38 (w: -0.3 m/s) | Q | ||
| 2 | align=left | align=left | | 6.26 (w: +0.2 m/s) | 6.30 (w: +1.4 m/s) | - | 6.30 (w: +1.4 m/s) | Q | ||
| 3 | align=left | align=left | | 6.18 (w: -0.8 m/s) | 6.26 (w: -1.1 m/s) | 6.22 (w: -0.5 m/s) | 6.26 (w: -1.1 m/s) | q | ||
| 4 | align=left | align=left | | 6.04 (w: -1.0 m/s) | 6.23 (w: +0.3 m/s) | 5.90 (w: -0.4 m/s) | 6.23 (w: +0.3 m/s) | q | ||
| 5 | align=left | align=left | | 6.22 (w: +1.0 m/s) | x | x | 6.22 (w: +1.0 m/s) | q | ||
| 6 | align=left | align=left |  | x | 6.20 (w: -0.2 m/s) | 5.94 (w: -0.7 m/s) | 6.20 (w: -0.2 m/s) | |||
| 7 | align=left | align=left |  | 6.08 (w: -0.1 m/s) | 6.18 (w: +1.9 m/s) | 6.09 (w: -0.8 m/s) | 6.18 (w: +1.9 m/s) | |||
| 8 | align=left | align=left | x | 6.05 (w: 0.0 m/s) | 6.17 (w: 0.0 m/s) | 6.17 (w: 0.0 m/s) | ||||
| 9 | align=left | align=left |  | x | 6.06 (w: -0.4 m/s) | 6.04 (w: +1.0 m/s) | 6.06 (w: -0.4 m/s) | |||
| 10 | align=left | align=left | 5.95 (w: +0.2 m/s) | 5.94 (w: +1.1 m/s) | 6.06 (w: -0.5 m/s) | 6.06 (w: -0.5 m/s) | ||||
| 11 | align=left | align=left |  | x | 5.93 (w: -0.6 m/s) | x | 5.93 (w: -0.6 m/s) | |||
| 12 | align=left | align=left |  | 5.60 (w: +0.7 m/s) | x | x | 5.60 (w: +0.7 m/s) | |||
| 13 | align=left | align=left |  | x | 5.59 (w: +0.1 m/s) | x | 5.59 (w: +0.1 m/s) | |||
| 14 | align=left | align=left |  | 5.54 (w: +0.1 m/s) | 5.29 (w: -1.6 m/s) | 5.32 (w: -0.4 m/s) | 5.54 (w: +0.1 m/s) | |||
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 6.37 (w: +1.3 m/s) | - | - | 6.37 (w: +1.3 m/s) | Q | ||
| 2 | align=left | align=left | x | 6.25 (w: +0.9 m/s) | 6.29 (w: +0.1 m/s) | 6.29 (w: +0.1 m/s) | q | |||
| 3 | align=left | align=left | | 6.19 (w: -0.5 m/s) | 6.29 (w: +1.1 m/s) | x | 6.29 (w: +1.1 m/s) | q | ||
| 4 | align=left | align=left | 5.45 (w: +0.2 m/s) | 6.28 (w: -0.1 m/s) | 6.23 w (w: +2.4 m/s) | 6.28 (w: -0.1 m/s) | q | |||
| 5 | align=left | align=left | 6.24 (w: +1.0 m/s) | 6.04 (w: -1.2 m/s) | x | 6.24 (w: +1.0 m/s) | q | |||
| 6 | align=left | align=left | | x | 6.21 (w: +0.5 m/s) | x | 6.21 (w: +0.5 m/s) | q | ||
| 7 | align=left | align=left | | 6.07 (w: +0.6 m/s) | 6.20 (w: +0.4 m/s) | 5.92 (w: 0.0 m/s) | 6.20 (w: +0.4 m/s) | q | ||
| 8 | align=left | align=left | | x | 5.95 (w: 0.0 m/s) | 6.15 (w: +0.4 m/s) | 6.15 (w: +0.4 m/s) | |||
| 9 | align=left | align=left |  | 6.13 (w: +0.9 m/s) | 6.03 (w: -1.1 m/s) | x | 6.13 (w: +0.9 m/s) | |||
| 10 | align=left | align=left | 6.12 (w: -1.1 m/s) | 6.08 (w: -0.6 m/s) | x | 6.12 (w: -1.1 m/s) | ||||
| 11 | align=left | align=left | | x | 6.06 (w: -0.8 m/s) | x | 6.06 (w: -0.8 m/s) | |||
| 12 | align=left | align=left | x | 5.33 (w: -0.4 m/s) | 5.97 (w: -1.8 m/s) | 5.97 (w: -1.8 m/s) | ||||
| 13 | align=left | align=left | | x | 5.81 (w: -1.2 m/s) | 5.91 (w: -1.1 m/s) | 5.91 (w: -1.1 m/s) | |||
| 14 | align=left | align=left |  | x | 5.91 (w: 0.0 m/s) | x | 5.91 (w: 0.0 m/s) | |||
According to an unofficial count, 28 athletes from 22 countries participated in the event.