The purpose of this work is studying of kinetics of wood pyrolysis in the presence of inorganic salts, representatives of classes of alkali and alkaline earth metal halides (NaCI, KCI. KBr, CaCI2. BaCb 2HzO) and Lewis acids (AlCly6H20. FeCly6H20. CuCl2, CuBr2, ZnCI21.5H20, NiCl2 6H20, SnCl2 2li20) using TC-DSC. Activity of these catalysts was estimated by temperature of the beginning of pyrolysis, charcoal yield and kinetic parameters, such as energy of activation and reaction order.