Since the 20th century , research on forest and slope-runoff yield has achieved a great progress, especial- ly in China are deeper and wider. Observation experiments are still the absolute predominance. Runoff plot experi- ments are adopted widely. Forest has influence on the slope-runoff yieldmechanism, slope runoff flow pattern, runoff yield amount, yield process, yield rainfall critical value, surface runoff and underground runoff division, and the impacts of litters on slope-runoff yield. In addition, slope-runoff model has been applied in forest hydrolo- gy.