Abstract: Basined on soil type methods and region scale, the distribution of soil organic carbon storages in purple paddy soil of Chongqing were investigated. The results showed that the storage of SOC in Banan district of Chongqing was 6.48×106 t and average SOC density in Banan district with 8.31 kg m-2 was higher than that of China. Carbon density of paddy soil in Banan district ranged from 1.73 kg m-2 to 3.70 kg m-2 at the depth of 0-20 cm, while that in profile ranged from 5.13 kg m-2 to 14.07 kg m-2. Storages of SOC at the depth of 0-20 cm and at the depth of 100 cm were 1.18×106t and 4.39×106 t, respectively. The whole distribution trend of SOC density with strip was high heterogeneous characters and the similar accumulation of SOC storages was observed among the same type of soils.