A 400-year dust-storm history in Daihai Lake area, Inner Mongolia, Northern China, was reconstructed on the basis of high-resolution grain-size analysis of the lake sediments, in combination with reconstructed historical data of regional precipitation from tree ring, frequency of dust storms in China and historical documentary records.The Daihai Lake is located at a climatically transitional zone between semi-arid and semi-humid where front position and intensity of the East Asian summer monsoon and winter monsoon chiefly control the climate change.Both the median grain size and coarse grain content indicate that dust-storm events were controlled mainly by the intensity of the summer and winter monsoon in the past 400 years.Major dust-all events are generally associated with dry and cold climate during the Little Ice Age, when the median grain size of the lake sediments is larger with high contents of coarse grain (> 100μ m)-At time of warm conditions after the Little Ice Age, dust-storm events were limited, both the contents of coarse grain (> 100μ m) and the median grain size also decreased-During the last one to two decades, however, dust-storm events increased gradually, related partly with more desertificated soil by human activity.