| Year | Competition | Venue | Position | Event | Notes |
Representing Chinese Taipei |
| 1996 |
World Junior Championships |
Sydney, Australia |
25th (h) |
400 m hurdles |
52.92 |
| Asian Junior Championships |
New Delhi, India |
2nd |
400 m hurdles |
51.23 |
| 1997 |
Asian Junior Championships |
Bangkok, Thailand |
3rd |
4 × 400 m relay |
3:08.66 |
| 1998 |
Asian Games |
Bangkok, Thailand |
3rd |
400 m hurdles |
50.46 |
| 7th |
4 × 400 m relay |
3:07.61 |
| 1999 |
World Indoor Championships |
Maebashi, Japan |
27th (h) |
200 m |
21.82 |
| Universiade |
Palma de Mallorca, Spain |
29th (h) |
400 m hurdles |
52.45 |
| World Championships |
Seville, Spain |
– |
400 m hurdles |
DQ |
| 2000 |
Asian Championships |
Jakarta, Indonesia |
10th (h) |
400 m hurdles |
53.15 |
| Olympic Games |
Sydney, Australia |
23rd (sf) |
400 m hurdles |
50.52 |
| 2001 |
World Indoor Championships |
Lisbon, Portugal |
17th (h) |
200 m |
21.88 |
| East Asian Games |
Osaka, Japan |
1st |
400 m hurdles |
49.18 |
| World Championships |
Edmonton, Canada |
– |
400 m hurdles |
DQ |
| Universiade |
Beijing, China |
3rd |
400 m hurdles |
48.63 |
| 2002 |
Asian Championships |
Colombo, Sri Lanka |
16th (sf) |
100 m |
11.75 |
| 8th (h) |
400 m hurdles |
53.02[2] |
| 2003 |
World Championships |
Paris, France |
34th (h) |
400 m hurdles |
51.42 |
| Asian Championships |
Manila, Philippines |
3rd |
400 m hurdles |
50.72 |
| 2005 |
Asian Championships |
Incheon, South Korea |
– |
400 m hurdles |
DNF |
| 6th |
4 × 100 m relay |
40.25 |
Outdoor
- 400 metres – 46.74 (Tainan 1998)
- 400 metres hurdles – 48.63 (Beijing 2001) NR
Indoor
- 200 metres – 21.82 (Maebashi 1999) NR