Hasil kualifikasi Moto3 Australia 2018, Phillip Island Sabtu 26 Oktober 2018
| Pos. | Num. | Pembalap | Negara | Tim | Motor | Km/h | Waktu | Gap 1st/Prev. |
| 1 | 88 | Jorge MARTIN | SPA | Del Conca Gresini Moto3 | Honda | 232.8 | 1’36.591 | |
| 2 | 40 | Darryn BINDER | RSA | Red Bull KTM Ajo | KTM | 241.3 | 1’36.848 | 0.257 / 0.257 |
| 3 | 71 | Ayumu SASAKI | JPN | Petronas Sprinta Racing | Honda | 239.7 | 1’37.117 | 0.526 / 0.269 |
| 4 | 84 | Jakub KORNFEIL | CZE | Redox PruestelGP | KTM | 233.9 | 1’37.357 | 0.766 / 0.240 |
| 5 | 19 | Gabriel RODRIGO | ARG | RBA BOE Skull Rider | KTM | 240.7 | 1’37.465 | 0.874 / 0.108 |
| 6 | 65 | Philipp OETTL | GER | Sudmetal Schedl GP Racing | KTM | 238.4 | 1’37.540 | 0.949 / 0.075 |
| 7 | 14 | Tony ARBOLINO | ITA | Marinelli Snipers Team | Honda | 235.4 | 1’37.579 | 0.988 / 0.039 |
| 8 | 42 | Marcos RAMIREZ | SPA | Bester Capital Dubai | KTM | 241.1 | 1’37.711 | 1.120 / 0.132 |
| 9 | 10 | Dennis FOGGIA | ITA | SKY Racing Team VR46 | KTM | 241.7 | 1’37.757 | 1.166 / 0.046 |
| 10 | 44 | Aron CANET | SPA | Estrella Galicia 0,0 | Honda | 232.4 | 1’37.844 | 1.253 / 0.087 |
| 11 | 75 | Albert ARENAS | SPA | Angel Nieto Team Moto3 | KTM | 234.2 | 1’37.892 | 1.301 / 0.048 |
| 12 | 27 | Kaito TOBA | JPN | Honda Team Asia | Honda | 239 | 1’37.896 | 1.305 / 0.004 |
| 13 | 7 | Adam NORRODIN | MAL | Petronas Sprinta Racing | Honda | 236.1 | 1’37.943 | 1.352 / 0.047 |
| 14 | 33 | Enea BASTIANINI | ITA | Leopard Racing | Honda | 234.1 | 1’37.995 | 1.404 / 0.052 |
| 15 | 12 | Marco BEZZECCHI | ITA | Redox PruestelGP | KTM | 233.3 | 1’38.011 | 1.420 / 0.016 |
| 16 | 72 | Alonso LOPEZ | SPA | Estrella Galicia 0,0 | Honda | 230.5 | 1’38.017 | 1.426 / 0.006 |
| 17 | 21 | Fabio DI GIANNANTONIO | ITA | Del Conca Gresini Moto3 | Honda | 237.2 | 1’38.021 | 1.430 / 0.004 |
| 18 | 17 | John MCPHEE | GBR | CIP – Green Power | KTM | 236 | 1’38.034 | 1.443 / 0.013 |
| 19 | 5 | Jaume MASIA | SPA | Bester Capital Dubai | KTM | 228.5 | 1’38.414 | 1.823 / 0.380 |
| 20 | 48 | Lorenzo DALLA PORTA | ITA | Leopard Racing | Honda | 234.9 | 1’38.590 | 1.999 / 0.176 |
| 21 | 77 | Vicente PEREZ | SPA | Reale Avintia Academy 77 | KTM | 232.4 | 1’38.828 | 2.237 / 0.238 |
| 22 | 31 | Celestino VIETTI | ITA | SKY Racing Team VR46 | KTM | 227.1 | 1’38.853 | 2.262 / 0.025 |
| 23 | 55 | Yari MONTELLA | ITA | SIC58 Squadra Corse | Honda | 230.9 | 1’38.905 | 2.314 / 0.052 |
| 24 | 24 | Tatsuki SUZUKI | JPN | SIC58 Squadra Corse | Honda | 230.5 | 1’38.934 | 2.343 / 0.029 |
| 25 | 81 | Stefano NEPA | ITA | CIP – Green Power | KTM | 236.3 | 1’39.027 | 2.436 / 0.093 |
| 26 | 41 | Nakarin ATIRATPHUVAPAT | THA | Honda Team Asia | Honda | 235.4 | 1’39.228 | 2.637 / 0.201 |
| 27 | 16 | Andrea MIGNO | ITA | Angel Nieto Team Moto3 | KTM | 232.3 | 1’39.516 | 2.925 / 0.288 |
