For studying wind power accommodation problem in XinJiang grid, based on actual operating data of wind farms in Xinjiang, calculated the quantitative indicators of reflecting the wind power nature statistics which include change rate of power output, correlation between wind farms, simultaneity factor of each wind farm, fluctuation characteristics and intermittent characteristics. Power output characteristics of Xinjiang wind farm/cluster were analyzed by probability statistics method. Results show that wind power in Xinjiang has relatively high output with less change rate and small fluctuation,high simultaneity factor and low intermittent factor and less destructive wind speed,high utilization ratio. Lastly, application of wind power output characteristic index was discussed in this paper. Applying study results of this paper, the ideas and approaches for accommodating wind power and establishing wind power output control philosophy were provided, and also the reference for the future development planning of wind power of the unstable power supply was proposed.