NOVELTY - A plastic-fuel mixture composition comprises sludge and/or fine coal, ignition temperature reducing component, preferably brown coal, peat, mechanical properties increasing component, preferably polysaccharide, lignocellulose, cellulose material carbohydrate derivatives and polyacrylic acid or polymer, preferably lignosulfonate, carboxymethylcellulose, alginate, carrageenan and pectinates in the form of aqueous solutions of solid salt, and regulating compound of plasticizer, preferably polyols, glycerol or glycerol fractions, polyethylene and water.    USE - Plastic-fuel mixture composition.    DETAILED DESCRIPTION - A plastic-fuel mixture composition comprises 90 wt.% sludge and/or fine coal with a calorific value of 30 MJ/kg and flashpoint of less than 280 degrees C, 20 wt.% ignition temperature reducing component, preferably brown coal, 20 wt.% peat, 10 wt.% mechanical properties increasing component, preferably polysaccharide, lignocellulose, cellulose material carbohydrate derivatives and 5 wt.% polyacrylic acid or polymer, preferably lignosulfonate, carboxymethylcellulose, alginate, carrageenan and pectinates in the form of aqueous solutions of solid salt, and 6 wt.% regulating compound of plasticizer, preferably polyols, glycerol or glycerol fractions, polyethylene and water, where the plastic-fuel mixture composition is prepared by mixing a component having capability to increase the mechanical properties of a molded fuel lignocellulose such as cellulose or other material with solution of polyacrylic acid salt powder in a polyol or polycarboxylic salts in a mixer to obtain homogeneous mixture, followed by mixing the homogeneous mixture with main component in the form of mud and/or coal fines, ignition temperature reducing component, preferably brown coal and / or peat, and component-A such as polyols, glycerol or the fraction of glycerol, glycols and water at more than 30 degrees C, controlling concentration by using component-B after formation of molded fuel with distinct characteristics of plastic observed by surface smoothness without the effect of appearance of a layer of moisture, and subjecting a formed component to surface treatment to remove fine dust fraction by using drier, subjecting the resultant component to a thermal convection drying and hardening process carried out using a gaseous medium at 120-150 degrees C to obtain a hardened product, adding a stabilized fuel mixture to the hardened product, dedusting the resultant product using drying gas and subjecting the product to filter bed to obtain a purified product, periodically exchanging the fuel mixture by using stream, and utilizing generating equipment for conversion of composite plastic molding compounds in stabilized fuel to obtain a finished product.