NOVELTY - A carbon carried shell type copper-platinum catalyst is prepared by dissolving soluble copper salt in ethanediol liquid, adding citric acid or citrate, adding carbon carrier, using ethanediol solution of sodium hydroxide or potassium hydroxide to adjust the pH value to 9-11, reacting, dispersing carbon carried copper particle to the ethanediol solution, adding chloroplatinic acid, adjusting pH, heating, reacting, centrifuging and rinsing the reaction solution until there is no chlorine ion, and vacuum drying.    USE - Method for preparing a carbon carried shell type copper-platinum catalyst for fuel battery (claimed).    ADVANTAGE - The method adopts two-step reducing method, reducing the non-noble metal and reducing the noble metal, controls the reaction temperature and pH value, deposits the noble metal on the surface of non-noble metal, and obtains the shell type catalyst. The carbon carrier is added so that the nanometal granule is directly grown on the carrier. The method reinforces the combination of catalyst granule and carbon carrier, has stable catalyst, and increases the catalyzing efficiency and noble utilization rate of catalyst.    DETAILED DESCRIPTION - Preparation of carbon carried shell type copper-platinum catalyst involves dissolving a soluble copper salt in ethanediol liquid (copper is 0.005-0.05 mol/liter); adding citric acid or citrate to copper ion at a ratio of 1-2:1; adding carbon carrier to copper ion at a ratio of 4-25:1; and stirring and obtaining the mixed solution. The carbon carrier is carbon black, carbon ball and carbon nanotube. Ethanediol solution of sodium hydroxide or potassium hydroxide is used to adjust the pH value to 9-11. Heating and reducing are conducted at 160-190 degrees C. The pH value is kept constant. The solution is reacted for 2-6 hours, centrifuged, rinsed, and vacuum dried at 50-80 degrees C. The carbon carried copper particle is dispersed to the ethanediol solution. Chloroplatinic acid is added until the mass ratio of copper to platinum is 0.2-3:1. Sodium hydroxide or potassium hydroxide is used to adjust the pH value to 7-9. The solution is heated and reduced at 70-110 degrees C, and reacted for 2-6 hours. It is centrifuged and rinsed until there is no chlorine ion, and vacuum dried at 50-80 degrees C, obtaining the carbon carried shell type copper-platinum catalyst.