The men's 4 × 400 metres relay event at the 2005 Asian Athletics Championships was held in Incheon, South Korea on September 2–4.
| width=200 bgcolor=gold | Gold | width=200 bgcolor=silver | Silver | width=200 bgcolor=CC9966 | Bronze | |
| valign=top | Yuki Yamaguchi Yuzo Kanemaru Hideo Togashi Mitsuhiro Sato | valign=top | Rohan Pradeep Kumara Rohitha Pushpakumara Manura Kuranage Perera Prasanna Amarasekara | valign=top | Anil Kumar Rohil Bhupinder Singh Satbir Singh Patlavath Shankar Aboo Backer |
| Rank | Heat | Nation | Athletes | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 1 | 3:07.98 | Q | |||
| 2 | 1 | 3:10.00 | Q | |||
| 3 | 2 | 3:11.13 | Q | |||
| 4 | 1 | 3:11.34 | Q | |||
| 5 | 2 | 3:11.65 | Q | |||
| 6 | 1 | 3:11.79 | q | |||
| 7 | 2 | 3:12.27 | Q | |||
| 8 | 2 | 3:12.64 | q | |||
| 9 | 1 | 3:15.21 |
| Rank | Team | Name | Time | Notes | |
|---|---|---|---|---|---|
| 3:03.51 | |||||
| 3:04.12 | |||||
| 3:07.45 | |||||
| 4 | 3:08.75 | NR | |||
| 5 | 3:10.60 | ||||
| 6 | 3:10.73 | ||||
| 7 | 3:11.70 | ||||