| Incheon Asiad Main Stadium - Track. Start time: 19:20 |
| Final | time | | L | React. | Birth | bib | | 1. Oluwakemi Mujidat Adekoya |  BRN | 51.59s | | 4 | 0.180 | 16 Jan 1993 | 1003 | | 2. Thi Lan Quach |  VIE | 52.06s | PB | 7 | 0.322 | 18 Oct 1995 | 1272 | | 3. Poovamma Raju Machettira |  IND | 52.36s | | 5 | 0.190 | 05 Jun 1990 | 1073 | | 4. Rasnayaka Mudiyanselage C. S. R. |  SRI | 52.47s | SB | 6 | 0.216 | 20 Jun 1987 | 1213 | | 5. Seika Aoyama |  JPN | 53.20s | | 3 | 0.253 | 01 May 1996 | 1106 | | 6. Kaur Mandeep | IND | 53.38s | | 9 | 0.226 | 19 Apr 1988 | 1074 | | 7. Thi Huyen Nguyen | VIE | 53.79s | | 2 | 0.194 | 19 May 1993 | 1273 | | 8. Yuliya Rakhmanova |  KAZ | 54.41s | | 8 | 0.332 | 25 Oct 1991 | 1130 |
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| Records | | WR | 47.60s | Marita Koch (GDR) | Canberra, ACT (AUS) | | 06 Oct 1985 | | AS | 49.81s | Ma Yuqin (CHN) | Beijing (CHN) | | 11 Sep 1993 | | GR | 51.11s | Oluwakemi Mujidat Adekoya (BRN) | Incheon (KOR) | Asian Games | 27 Sep 2014 |
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| | | First 2 and Best 2 progress to the Final. 3 Heats, 21 Athletes. | Heat 1 20:20 |
| Ranking | time | | L | React. | Birth | bib | | 1. Rasnayaka Mudiyanselage C. S. R. | SRI | 52.78s | | 5 | 0.186 | 20 Jun 1987 | 1213 | | 2. Yuliya Rakhmanova | KAZ | 54.21s | | 3 | 0.304 | 25 Oct 1991 | 1130 | | 3. Siti Nur Afiqah Binti Abdul Razak |  MAS | 54.47s | | 4 | 0.194 | 28 Mar 1998 | 1184 | | 4. Jingwen Chen |  CHN | 54.93s | | 7 | 0.208 | 08 Feb 1990 | 1018 | | 5. Sera OH |  KOR | 55.92s | | 2 | 0.187 | 30 Aug 1987 | 1152 | | 6. Ka Man Leong |  MAC | 57.07s | PB | 6 | 0.161 | 07 Jan 1990 | 1182 | | 7. Chui Ling Goh |  SIN | 58.56s | | 8 | 0.170 | 27 Nov 1992 | 1209 |
| Ranking | time | | L | React. | Birth | bib | | 1. Poovamma Raju Machettira | IND | 52.17s | | 6 | 0.211 | 05 Jun 1990 | 1073 | | 2. Thi Lan Quach | VIE | 52.57s | PB | 7 | 0.301 | 18 Oct 1995 | 1272 | | 3. Seika Aoyama | JPN | 52.99s | PB | 3 | 0.223 | 01 May 1996 | 1106 | | 4. Elina Mikhina | KAZ | 53.94s | | 2 | 0.234 | 16 Jul 1994 | 1129 | | 5. Danah Hussein A. Al Khafaji |  IRQ | 54.78s | | 5 | 0.207 | 03 Jan 1986 | 1103 | | 6. Atchima Eng Chuan |  THA | 55.18s | | 4 | 0.168 | 10 Feb 1990 | 1221 | | 7. T Piriyah | SIN | 58.73s | | 8 | 0.166 | 10 Jun 1992 | 1208 |
| Ranking | time | | L | React. | Birth | bib | | 1. Oluwakemi Mujidat Adekoya | BRN | 51.11s | GR | 8 | 0.167 | 16 Jan 1993 | 1003 | | 2. Kaur Mandeep | IND | 53.06s | SB | 2 | 0.197 | 19 Apr 1988 | 1074 | | 3. Thi Huyen Nguyen | VIE | 53.19s | SB | 6 | 0.194 | 19 May 1993 | 1273 | | 4. Nanako Matsumoto | JPN | 53.65s | PB | 3 | 0.140 | 03 Sep 1996 | 1107 | | 5. Chong Cheng | CHN | 54.38s | | 7 | 0.194 | 22 Sep 1992 | 1019 | | 6. Jihyun Min | KOR | 55.91s | | 4 | 0.198 | 15 Jul 1988 | 1151 | | 7. Dil Maya Karki |  NEP | 1:00.30 | PB | 5 | 0.192 | 05 Oct 1988 | 1191 |
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