NOVELTY - Preparation of catalyst involves adding 10-40 wt.% alumina into ethanol dispersant, and ball milling to obtain alumina microparticles, mixing glucose solution and magnesium nitrate hexahydrate, adding obtained solution into the microparticles, drying, calcining, and naturally cooling to obtain spinel magnesium aluminate-coated alumina composite carrier (A), mixing glucose solution and nickel nitrate solution, adding obtained solution into carrier (A), drying the obtained material at 105 degrees C for 4 hours, and calcining at 400-600 degrees C for 4-6 hours.    USE - Preparation of catalyst used in methanation reaction.    ADVANTAGE - The method enables preparation of catalyst with high activity and stability.    DETAILED DESCRIPTION - Preparation of glucose complex catalyst involves adding 10-40 wt.% alumina or pseudoboehmite into ethanol dispersant, and ball milling the mixture for 20-60 minutes to obtain alumina or pseudoboehmite microparticles in which the content of alumina is 74 wt.%, mixing glucose solution and magnesium nitrate hexahydrate, adding obtained glucose-magnesium complex solution into the microparticles, drying obtained magnesium aluminate-coated alumina composite carrier at 105 degrees C for 2-4 hours, calcining the obtained material at 400-600 degrees C for 4-6 hours, and naturally cooling to room temperature to obtain spinel magnesium aluminate-coated alumina composite carrier (A) with magnesium aluminate as shell layer, mixing glucose solution and nickel nitrate solution, adding obtained glucose-nickel complex solution into carrier (A) such that the content of nickel oxide with respect to catalyst becomes 5-55 %mass, drying the obtained material at 105 degrees C for 4 hours, and calcining at 400-600 degrees C for 4-6 hours, or mixing glucose solution, and metal nitrate solution as additive, adding obtained complex solution into carrier (A), drying the obtained mixture at 105 degrees C for 4 hours, then calcining at 400-600 degrees C for 4-6 hours in a muffle furnace, and naturally cooling calcined material to room temperature to obtain metal/magnesium aluminate-coated alumina composite material, mixing glucose solution and nickel nitrate solution, adding obtained solution into metal/magnesium aluminate-coated alumina composite material, drying the obtained mixture at 105 degrees C for 4 hours, then calcining at 400-600 degrees C for 4-6 hours in a muffle furnace, and naturally cooling calcined material to room temperature. The catalyst is nickel oxide/magnesium aluminate-coated alumina catalyst, or nickel oxide-metal/magnesium aluminate-coated alumina catalyst. The metal in the metal nitrate is cerium, calcium, cobalt, lanthanum, zirconium, samarium, barium, manganese, iron, molybdenum, titanium or copper.