【Objective】This study aimed to reveal the effects of global warming on the soil organic carbon contents in forest ecosystems. 【Method】the soil columns at the elevation 3200 m were excavated and transplanted from elevation of 3200 m to 1600 m with a 400 m interval (2800 m,E1; 2400 m,E2; 2000 m,E3; 1600 m,E4) on the east slope of Gongga mountain in November 2013,and the soil columns at each elevation were divided into two treatments T1 and T2(The soil columns uncovered with nothing and received the precipitation and litters from location for T1 and covered with glass and received precipitation and litters from 3200 m for T2). The soil samples were collected from soil columns at each elevation of T1 and T2 groups in November from 2014 to 2016,and the soil organic carbon contents were determined by the method of potassium dichromate-oxidation external heating.【Result】With the temperature increasing or elevation decreasing,the organic carbon contents increased significantly (P < 0. 05) for T1 treatment,while fluctuated with no significance (P > 0. 05) for T2 treatment. The changes among years differed between treatments,as well as the elevation gradients. The soil organic contents for 2015 were higher than that for 2014 and 2016,and the significant differences (P < 0. 05) were observed for E0,E3 and E4 in T1 treatment. Compared with T1,the change tendencies of soil organic contents varied among gradients,and there were significant (P < 0. 05) for each for gradients in T2.【Conclusion 】Compared with the effect of a single temperature increasing on soil organic contents in T2,the effects of temperature increasing,litter fall and precipitation are stronger in T1.