1990 Asian Junior Athletics Championships

The 1990 Asian Junior Athletics Championships was the third edition of the international athletics competition for Asian under-20 athletes, organised by the Asian Athletics Association. It took place from 13–16 June in Beijing, China. A total of 40 events were contested, 22 for male athletes and 18 for female athletes.

Women's 100 metres
The women's 100 metres event at the 1990 Asian Junior Athletics Championships was held in Beijing, China on 13 June.

Heats
Wind: Heat 1: +0.7 m/s, Heat 2: +1.2 m/s, Heat 3: +1.2 m/s

Final
Wind: +2.9 m/s

Women's 400 metres
The women's 400 metres event at the 1990 Asian Junior Athletics Championships was held in Beijing, China on 13–14 June.

Women's 4 × 100 metres relay
The women's 4 × 100 metres relay event at the 1990 Asian Junior Athletics Championships was held in Beijing, China on 16 June.