NOVELTY - A tobacco organic fertilizer producing method involves crushing oil cake and mixing with rice husk. Carbon and nitrogen are mixed. Bacillus subtilis and thermophilic sporotrichum are mixed to obtain a mixture. Candida tropicalis and hansenula are mixed to obtain another mixture. The two mixtures are mixed to obtain fermentation compound bacterium mixture. The oil cake mixture and the bacterium mixture are mixed. The mixture is heated, ventilated and fermented using amino acid, humic acid, organic matter and tobacco seed. The mixture is breaked and packed.    USE - Method for producing tobacco organic fertilizer by fermenting oil cake directionally without smell.    ADVANTAGE - The method ensures that microorganism generates special fragrance substance such as alcohol and ester during metabolic activity in an anaerobic environment so as to eliminate oil cake fermentation smell and to purify the fermentation environment.    DETAILED DESCRIPTION - A tobacco organic fertilizer producing method involves crushing oil cake to 40 meshes and mixing with rice husk with granularity greater than 40 meshes. Carbon and nitrogen are mixed according to ratio of 20-25:1. The water content of the mixture is adjusted as 45-55%. Bacillus subtilis and thermophilic sporotrichum are mixed according to ratio of 10:(1-5) to obtain a mixture. Candida tropicalis and hansenula are mixed according to ratio of 20:(20-40) to obtain another mixture. The two mixtures are mixed according to ratio of 1:1 to obtain a fermentation compound bacterium mixture. The oil cake mixture and the fermentation compound bacterium mixture are mixed according to ratio of (50-500):1 for 48-72 hours. The mixture is heated to 55 degrees C. The obtained mixture is ventilated and fermented for 18-24 hours at 60 degrees C for 4-5 days till the temperature is at 42.5 plus or minus 2.5 degrees C. The bacterium mixture is added to the fermentation material. A turning device is used to enable the fermentation temperature to keep under 40 degrees C to go on fermenting till normal temperature. The mixture is sampled and detected by using (in wt.%) amino acid (15-25), humic acid (30-50), organic matter (50-65) and sprouting index of early-maturing tobacco seed (70-85). The mixture is breaked, packed and put in a storehouse.