The invention relates to a soil conditioner, an organic manure containing the soil conditioner and a preparing method thereof. 60.0 to 80.0 portions of pluck is selected according to the weight portion, 30.0 to 40.0 portions of food vinegar is added into the pluck after the pluck is crashed, the dipping extracting solution is concentrated, frozen out and crashed as the beneficiated burden material, then added into pulverized fuel ash after being atomized, 0.1 to 5.0 portions of the beneficiated burden material is selected according to the weight portion, 95.0 to 99.5 portions of pulverized fuel ash is added, and the beneficiated burden material and the pulverized fuel ash are uniformly mixed to be as the soil conditioner; 0.1 to 5.0 portions of the beneficiated burden material and 36.3 to41.2 portions of the pulverized fuel ash are selected according to the weight portion, 8.7 portions of carbamade with 46 percent of nitrogen content, and 50.0 portions of turf with more than 60 percent of organic substance content are added, and after the materials are uniformly mixed, the organic manure containing the soil conditioner is prepared. Through manuring the soil conditioner or the organic manure containing the soil conditioner, the growing conditions of soil microbes can be improved, the activity of the soil microbes can be energized, the physical behaviour of the soil can be improved, the deliverability of the soil nutrient can be enhanced, the plant growth can be promoted, the stress resistance and the disease resistance of the plant can be enhanced, and the yield per unit and the quality of the plant can be remarkably improved.