Badminton tournaments were held for the fifth time at the 8th Asian Games in 1978 from 11 December to 20 December in Bangkok, Thailand.
Semifinal results
| Discipline |
Winner |
Runner-up |
Score |
| Men's singles |
Han Jian |
Iie Sumirat |
15–6, 15–1 |
Liem Swie King |
Luan Jin |
15–5, 18–13 |
| Women's singles |
Liang Qiuxia |
Sirisriro Patama |
12–11, 11–5 |
Liu Xia |
Saori Kondo |
11–5, 11–4 |
| Men's doubles |
Lin Shiquan Tang Xianhu |
Wong Man Hing
Fu Han Ping |
15–3, 15–5 |
Ade Chandra Christian Hadinata |
Hou Jiachang Yu Yaodong |
17–14, 15–7 |
| Women's doubles |
Zheng Huiming Qiu Yufang |
Ruth Damyanti Theresia Widiastuti |
15–5, 15–12 |
Imelda Wiguna Verawaty Wiharjo |
Sirisriro Patama Thongkam Kingmanee |
15–7, 15–6 |
| Mixed doubles |
Kartono Theresia Widiastuti |
Yu Yaodong Li Fang |
15–8, 15–11 |
Tang Xianhu Zhang Ailing |
Christian Hadinata Imelda Wiguna |
12–15, 15–7, 15–5 |