Abstract: In this paper, 2012—2014 in Bayan nur city comprehensive agricultural development project area sample data determination of soil nutrient content, soil total nitrogen, available phosphorus, available potassium, organic matter and total salt content and other important indicators of nutrient characteristics. The results showed that the Bayan Nur city comprehensive agricultural development project area the soil total nitrogen was given priority to with low volume levels, most of the cultivated land in total nitrogen content between 0.57 to 1.07 g/kg;effective phosphorus content range is larger and most of the soil phosphorus content is obviously insufficient; soil available potassium content higher levels, measured area in the amount of 80% above; organic matter content is given priority to medium level, the high content and low content; the lower level of the soil salinization in the city, but there is also a double salt area. Different flag county soil and the same counties had differences in nutrient content which, must further strengthen soil testing formula fertilization technology popularization.