Abstract: Effects of different ecological restoration measures on total soil organic carbon (SOC) and active soil organic carbon are studied. The measures include reference forest (C0), forest-garden-grass+horizontal ditch (C1), arbor- shrub- grass + bamboo knot ditch (C2), Camellia oleifera + equal height grass strip (C3) and unrestored area (CK). The results showed that the SOC of C1 and C2 significantly increased by 51.87% and 52.90% compared with that of CK after ecological restoration, and reached 48.42% and 48.75% of that of C0. Microbial biomass carbon, soluble organic carbon extracted by cold water and hot water under C1 and C2 increased by 49.91%-78.77%, 43.15%-91.11% and 28.17%-108.36% compared with those of CK, and they were 67.01%-89.47%, 35.65%-57.95% and 32.88%-39.21% of that of C0, while biomass carbon, soluble organic carbon extracted by cold water under C3 slightly decreased, soluble organic carbon extracted by hot water increased by 29.87%. There were extremely significant relationships between the SOC and different labile organic carbon components and among the components. The proportion of microbial biomass carbon, soluble organic carbon extracted by cold water and hot water to the total organic carbon ranged from 1.91% to 4.73%, 0.76% to 2.49% and 4.11% to 8.16%, respectively.