[Objective] Dynamics of soil wind erosion in the desertification region of Northern Shanxi Province were analyzed to provide some supports for the prevention of land degradation and the benefit assessment of sand source control engineering for Beijing-Tianjin Cities.[Methods] Based on different types of surface soil erosion model, we studied the dynamics and spatial variability of soil wind erosion for each pixel in the desertification region of Northern Shanxi Province from 2001 to 2014 and then quantitatively evaluated the effects of different factors on regional soil wind erosion control.[Results] (1) Average annual soil wind erosion modulus in the desertification region of Northern Shanxi Province in 2001-2014 was 4.67 t/(hm²·a), which is in a state of mild deflation. In terms of regional distribution, the state of wind erosion desertification in the north of that region was more serious than that in the south. (2) The average soil erosion modul in 2001, 2005, 2010 and 2014 were 6.83, 3.89, 4.36 and 2.55 t/(hm²·a), respectively. And the total amounts of soil erosion were 20.90 million ton, 11.88 million ton, 13.10 million ton and 7.65 million ton, respectively. (3) The improvements of vegetation coverage and wind weakening were the main causes of decline of regional soil wind intensity in the desertification region of Northern Shanxi Province. The study found that the contribution rate of wind effect weakening was about 77.7% for the decrease of wind erosion, while the contribution rate of increase of vegetation coverage was 22.3%.[Conclusion] The soil wind erosion change varied remarkably in spatial domain. Wind weakens is the main cause of regional soil wind intensity weaken in Northern Shanxi Province desertification region. The vegetation coverage in Northern Shanxi Province desertification region has not been restored to a good condition. This indicates that the implement of ecological engineering should be carried out and the effects of ecological project should be protected.