Dry steppe area occupies quite big area in loessal plateau region of north China. The main characteristics of the area are droughty,windy and dusty,soil and water loss,abundant land and less people. The very urgent task is how to carried out comprehensive control of soil and water conservation taking small watershed as unit and How to make the masses to shift from poor to rich. However,there is no any successful method. The experiment of comprehensive con trol of soil and water conservation has been made in Dang Jiashui small watershed for five years. A very marked results suiting measures to local conditions and using flood and sand scientificly as well as developing colleet runoff agriculture have been achived. The experiment has provided new experience and method developing small comprehensive control of soil and water conservation in dry steppe area and explored a effective control model and way.