| Tournament details | |
|---|---|
| Host country | |
| Teams | 6 (from 1 confederation) |
| Venue(s) | 1 (in 1 host city) |
| Final positions | |
| Champions | |
| Runners-up | |
← 1977 1979 → | |
The 1978 King's Cup were held in Bangkok. This edition once again reverted to two groups of 3 teams. The winners and runners up advance.
Thailand entered this edition with an 'A' and 'B' squads. Indonesia was represented by clubside Persib.
| Group A | Group B |
|---|---|
|
| Team | Pld | W | D | L | GF | GA | GD | Pts |
|---|---|---|---|---|---|---|---|---|
| 2 | 1 | 1 | 0 | 2 | 0 | +2 | 3 | |
| 2 | 1 | 0 | 1 | 3 | 2 | +1 | 2 | |
| 2 | 0 | 1 | 1 | 0 | 3 | −3 | 1 |
| South Korea | 2–0 | |
|---|---|---|
Results unknown
Singapore advanced, result unknown
| 1978 King's Cup champion |
|---|
Malaysia 4th title |