NOVELTY - Method for preparing pyroligneous liquor and organic fertilizer mixed soil conditioner, involves obtaining crude wood vinegar liquid, removing oil from the liquid surface, obtaining the bottom layer, uniformly mixing charcoal powder, filtering the solution to obtain refined pyroligneous liquor, preparing organic fertilizer using cow manure, mixing diluted pyroligneous liquor, performing first fermentation, turning the pile, adding diluted pyroligneous liquor, finishing composting process, cooling the pile, drying the cooled pile and sieving the mixture.    USE - The method is useful for preparing pyroligneous liquor and organic fertilizer mixed soil conditioner (claimed).    ADVANTAGE - The method significantly improves composting process and composting quality, and enables to improve physical, chemical and biological indexes of soil conditioned by the conditioner.    DETAILED DESCRIPTION - Method for preparing pyroligneous liquor and organic fertilizer mixed soil conditioner, involves obtaining crude wood vinegar liquid from carbon distillation device exhaust port at 80-150 degrees C, allowing the liquid to stand for 3-6 months, removing oil from the liquid surface, obtaining the bottom layer, uniformly mixing 1-5 wt.% charcoal powder and filtering the solution to obtain refined pyroligneous liquor, (b) preparing organic fertilizer using 70-80% cow manure by (i) mixing 1-1.5 kg refined pyroligneous liquor/ton organic material, diluted by spraying 30 times water, (ii) performing first fermentation at the center at 50 degrees C, turning the pile and adding 1-1.5 kg pyroligneous liquor diluted by spraying 30 times water on upper portion, (iii) turning the pile when the temperature of composting center reaches 65 degrees C, adding 1-1.5 kg pyroligneous liquor diluted by spraying 30 times water on upper portion, where the diluted pyroligneous liquor is added for three times, the resulting mixture comprises 5-7.5 kg/ton organic fertilizer, the highest fermentation temperature is controlled at 65 degrees C, and the temperature higher than 50 degrees C is maintained for 10-14 days, and (c) stopping turning the pile, where the temperature of the pile begins to drop, finishing composting process, cooling the pile to ambient temperature, drying the cooled pile and sieving the mixture. An INDEPENDENT CLAIM is included for method for conditioning soil, which involves uniformly distributing the soil conditioning agent prepared by the above-mentioned method on the surface of the soil at the rate of 1000 kg/acre, where the rate of application of the pyroligneous liquor is 5-7.5 kg/acre, applying the agent to root depth, ploughing the land, where the agent is mixed with the soil, and planting crops.