[Objective] Plant growth and development are inseparable from carbon and nitrogen, and can also promote the geochemical cycle through carbon assimilation and nitrogen absorption. Taking the two alpine wetland soils of Qinghai lakeside and river-head as the research objects, the carbon and nitrogen measurement characteristics were studied to reveal the distribution of carbon and nitrogen in different alpine wetlands and its measurement characteristics. [Method] From June to September 2017, 132 soil samples were collected in the lakeside wetland in the east of Qinghai lake basin and the river-head wetland in the north of Qinghai lake basin. Soil total carbon (TC), lotal nitrogen (TN) , organic carbon (SOC) , pH value and electrical conductivity (EC) were measured, and soil moisture content (SWC) and soil bulk density were calculated. The one-way variance method was used to analyze the difference of soil C/N between different soil layers in die two alpine wetland soils, while pearson correlation analysis method was used to analyze the correlation between soil carbon and nitrogen stoichiometry and soil environmental attributes. [Result]The results showed that the contents of soil total carbon (TC) and total nitrogen (TN) in llie two alpine wetlands decreased with soil depth. The TC and TN contents were the largest at 0 - 10 cm. The TC and TN contents were lower in die lakeside wetland soil than in die river-head wetland. The average TC contents were 114. 59 and 137.42 g.kg-1, respectively, while the average TN contents were 6.98 and 10.48 g.kg-1, respectively. The C/N of die two alpine wetland soils increased with soil depth, which increased faster below depth of 20 cm. The average of C/N in die lakeside wetland was 16.95 and 13.42 in die river-head wetland. From June to September, the changes of TN and TC contents in the wetland of lakeside were characterized by June > September > July > August, and river-head wetland was September > June >Julv > August. The changes of soil C and N stoichiometric characteristics in two alpine wetlands were related to soil depth, soil water content (SWC) , pH and bulk density, of which SWC was the greatest influencing factor. [Conclusion]Both alpine wetland soils of Qinghai lake had the characteristics of more carbon and less nitrogen. The average C/N of the soil was higher than that of soils in China, and lower than that of wetlands in China. [ABSTRACT FROM AUTHOR]