NOVELTY - Extracting cedar oil from China fir sawdust and co-producing active carbon, comprises: (a) distilling the fresh China fir sawdust by steam at steam temperature of 100-120 degrees C; distilling for 3-4 hours, sending the effective component of the sawdust with the steam to a cooling process to obtain liquid raw oil water, separating water and oil to obtain cedar oil; braising and carbonizing the China fir sawdust after steaming oil to obtain carbonized material having water content of 10-12%; and (b) pre-heating the carbonized material by steam.    USE - The process is useful for extracting cedar oil from China fir sawdust and co-producing active carbon (claimed).    ADVANTAGE - The process can improve yield and quality of the product, reduce production cost, and improve economic benefit.    DETAILED DESCRIPTION - Extracting cedar oil from China fir sawdust and co-producing active carbon, comprises: (a) distilling the fresh China fir sawdust by steam at steam temperature of 100-120 degrees C; distilling for 3-4 hours, sending the effective component of the sawdust with the steam to a cooling process to obtain liquid raw oil water, separating water and oil to obtain cedar oil; braising and carbonizing the China fir sawdust after steaming oil to obtain carbonized material having water content of 10-12%; and (b) pre-heating the carbonized material by steam: increasing temperature of the carbonized material to 80-100 degrees C and sending to flowing gas activation furnace and activating at furnace temperature of 800-1,000 degrees C for 15-20 seconds to obtain rough carbon; ball milling to obtain physical active carbon; and pre-heating carbonized material; where the flowing gas activating furnace is steam having pressure of 3-4 KPa generated by the waste heat in the production process of recovering active carbon by waste heat boiler.    DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram of the process for extracting cedar oil from China fir sawdust and co-producing active carbon (Drawing includes non-English language text).