Comprehensive management of small watershed has been a main type of controlling soil and water loss in the world today.With rapid upsurge and wide spreading of the sustainable development theory,the manner of comprehensive management of small watershed has been fundamentally changed from the forms of simple prevention and protection in the past to those of comprehensive management,use and protection today,and presents the tendency of approach to the orbit of sustainable management.The concept of sustainable development of small(watershed) was put forward based on a deep definition analysis of sustainable development and the small watershed comprehensive management.Several key questions about how to realize sustainable management of small watershed were emphatically explained.Authors' aim was to give rise to more attentions to the questions by academic circle and deep research on sustainable management of small watershed.