Based on sandstorm records in Ningxia,Arctic sea-ice concentration data and 500,850hPa height and wind fields from NCEP/NCAR reanalysis dataset,the variations of sandstorm are investigated.It is found that there are significant interannual and interdecadal correlations between the spring sandstorm frequency and the sea-ice area indices of Kara,Barents and Greenland seas,which locate on the north of Eurasion continent.By using composite and correlation analysis,it is concluded that the circulation backgrounds between more and less spring sandstorm are evidently different,and the anomalies of autumn Greenland sea-ice can affect the occurrence of sandstorm in the following spring in Ningxia through impacting the atmospheric circulation background.When autumn Greenland sea-ice area increases(decreases),500 and 850hPa height fields from Mongolia to Siberian will become lower(higher) and the wind fields in following spring will exhibit cyclonic(anticyclonic) anomalies,and west winds from Ningxia to Xingjiang will be significantly stronger(weaker),which suggest the activities of cold air are active(inactive).As a result,the occurrence of spring sandstorm in Ningxia are more(less).It is possible to link the decreasing trend of sandstorm in Ningxia (North China) and the global warming through sea-ice,and it is concluded that the decreasing trend of sandstorm in China could be caused by the global warming.