The Xi he River demonstration district, as an ecological project of soil and water conservation in the Yellow River basin,is located in the third sub-area of hilly gully area on the Loess Plateau.Its topogra-phy is typical of numerous valleys and gullies, where gully erosion is one of the main erosion processes. Con-struction of check dam is an important engineering measure for gully management in the region. In practice, many regional experiences of check dam construction have been developed, such as small reservoir capacity with high dam, high standard against flood, huge invest, and single form of construction. In planning, some technical methods-single dam dominated,relaxing technical indexes moderately, arranging main projects reasonably, and increasing standard against flood moderately-have been popularly used. Check dam plays an important role in promoting social economic development in the area.