NOVELTY - Method for producing biogas and organic fertilizer using tobacco waste, involves using a crusher to crush tobacco waste, mixing auxiliary material to obtain mixture, adding the mixture to a closed fermentation tank to obtain biogas, preparing fermentation medium by mixing biogas residue, biogas slurry and microbial inoculum, performing fermentation, using magnetic separator to remove metal impurities in mixed material, drying the mixed material, using crusher to crush dried material, and packing crushed material in a plastic bag, preferably woven bag.    USE - The method is useful for producing biogas and organic fertilizer using tobacco waste, where the biogas is used as fuel for burning light and producing electricity (claimed).    ADVANTAGE - The method produces high-quality bioorganic fertilizer, recycles resources, utilizes waste materials, solves the long term problem of tobacco waste, and is economically and socially beneficial.    DETAILED DESCRIPTION - Method for using tobacco waste to produce biogas and organic fertilizer, involves (a) using a crusher to crush tobacco waste into particles having size of 10-20 mm, (b) mixing auxiliary material chosen from 100 pts. wt. tobacco waste, 50-100 pts. wt. feces and 0.1-0.3 pts. wt. microbial inoculum to obtain a mixture, and adding and mixing water to the mixture, (c) adding the mixture to a closed fermentation tank to carry out anaerobic fermentation to obtain biogas, (d) performing solid-liquid separation of biogas residue and biogas slurry, (e) preparing fermentation medium by mixing 100 pts. wt. biogas residue, 20-50 pts. wt. biogas slurry and 2 pts. wt. microbial inoculum until the water content reaches 40-60%, (f) stacking the mixed material to a height of 0.8-1.2 m, controlling the fermentation temperature to 50 degrees C after performing fermentation for 1-2 day(s), and again controlling fermentation temperature to 40-59 degrees C for 7-8 days, (g) using magnetic separator to remove metal impurities in mixed material, (h) drying the mixed material until the water content becomes less than 30%, using crusher to crush dried material to obtain particles having size of 30-50 meshes, and packing crushed material in a plastic bag, preferably woven bag.