It is important to understand the soil organic carbon(SOC)and soil nutrients characters for selecting a suitable fertilization management for the soil environment health in rainy southern China with high temperature.We analyzed frequencies and the regression correlations of the SOC and other four key nutrients contents in eastern area of Guangxi province.The results showed that the SOC,pH,total N and available P contents of 83%~96% samples were at the medium or high level,with a mean of 21.6 g·kg-1,6.9,2.1 g·kg-1 and 23.5 mg·kg-1,respectively.The average content of available K was 89.3 mg·kg-1,and 40% samples belonged to medium and high level.It showed that although the soil fertility was increasing in the survey place in these years,K application should be encouraged for maintaining high soil fertility.There was significant relationship among the SOC and other key nutrients,and the correlation value was total N>pH>available P>available K.It showed that the optimized fertilization and improved pH were the key factors to improve the soil fertility and the SOC level.