[Objective] To examine the temporal and spatial characteristics of dust flux and to determine the influencing factors in Wucaiwan open-pit coalmine in the East Junggar Basin in Xinjiang area, of which, the effects of meteorological factors on dust flux and deposition were underlined. Through the analysis of temporal and spatial pattern of dust flux in mining time, theoretical basis with regard to the monitoring methods were expected to be provided.[Methods] The key impacting factors were determined by the correlations of four meteorological factors with the dust flux.[Results] (1) The results indicated that the trend of dust flux had three types; (2) The influences of meteorological factors on dust flux ranked as:wind velocity>average soil humidity>average environment temperature; (3) Deposited distribution of dusts were both affected by winds and human interferences in this region.[Conclusion] Because of the higher mining rate, the dust fluxs in April, June and September were greater than thats on other months. Ambient humidity influenced lightly on dust flux, wind was the main meteorological factors. Dust fall was mainly distributed in area about 8~10 km apart from working section, storage area and industrial estate in the predominant wind direction.