Hong Kong League Cup 2004–05 is the 5th staging of the Hong Kong League Cup.
The competition sponsor was Sunray Cave Limited.
Sun Hei captured the champion for 3 consecutive times after beating Happy Valley by 1-0 in the final.
All times are Hong Kong Time (UTC+8).
| Team | Pts | Pld | W | D | L | GF | GA | GD | |
|---|---|---|---|---|---|---|---|---|---|
| Happy Valley | 7 | 3 | 2 | 1 | 0 | 10 | 4 | 6 | |
| Sun Hei | 6 | 3 | 2 | 0 | 1 | 8 | 5 | 3 | |
| Kitchee | 4 | 3 | 1 | 1 | 1 | 7 | 7 | 0 | |
| Fukien | 0 | 3 | 0 | 0 | 3 | 0 | 9 | -9 |
------------
| Team | Pts | Pld | W | D | L | GF | GA | GD | |
|---|---|---|---|---|---|---|---|---|---|
| Buler Rangers | 8 | 4 | 2 | 2 | 0 | 10 | 5 | 5 | |
| Citizen | 8 | 4 | 2 | 2 | 0 | 5 | 2 | 3 | |
| South China | 6 | 4 | 2 | 0 | 2 | 5 | 6 | -1 | |
| Sunray Cave | 5 | 4 | 1 | 2 | 1 | 5 | 3 | 2 | |
| Xiangxue Pharmaceutical | 0 | 4 | 0 | 0 | 4 | 3 | 12 | -9 |
----
Cristiano Cordeiro of Sun Hei Ernestina of Happy Valley