Abstract: The carbon sequestration of the Jatropha curcus energy plantation in Shuangjiang County, Yunnan Province was estimated from the year 2007 to 2026 according to the ‘Guidelines of Carbon Sequestration Accounting and Monitoring for Afforestation Projects by China Green Carbon Foundation’. The results showed that from 2007 to 2016 the plantation would be mainly a carbon source, especially in 2008 the net carbon sequestration flux value was -85094.66 t CO2 e. It would be a carbon sink after 2017, the net carbon sequestration value in that year would be 18593.70 t CO2 e, and the net carbon sequestration value would be the maximum in 2026 by 297260.8 t CO2 e.