Abstract: Based on data from the 8^th national continuous forest inventories (CFI), the carbon density and carbon storage of forest in Sichuan Province were estimated with the Variable Biomass Extension Factor Method. Results indicated that till the 8^th forest inventory, the forest biomass of Sichuan Province was 1 331.66 Mt, and the total carbon storage of forest vegetation of Sichuan Province was 729.05 Mt, the average carbon density of stand was 56.84 t/hm², the average carbon density of forest vegetation was 43.26 t/hm². Coniferous forest has the greatest contribution to carbon storage of all types of forest in Sichuan Province. Over mature forest and mature forest play an important role in carbon storage. Young and middle-aged forest area account for 42.67% of the stands area of forest, which indicated that the forest resources in Sichuan vegetation tend to be younger, and have enormous development potential. With the growth of stand age, carbon density of stand and unit stock volume of each age group was gradually increasing.