NOVELTY - Preparing a dye-sensitized solar battery counter electrode comprises: slowly pouring chloroplatinic acid into a flask with isopropanol and obtaining solution A; slowly pouring ethyl cellulose into a flask with terpilenol and obtaining a carrier B; mixing the solution A and the carrier B and obtaining a screen printing platina paste; ultrasonic cleaning a fluorine-doped tin oxide conductive glass with deionized water and acetone; printing the platina paste on the glass and obtaining an initial platina electrode; and immersing the initial electrode in titanium tetrachloride aqueous solution.    USE - The method is useful for preparing a dye-sensitized solar battery counter electrode.    ADVANTAGE - The method increases the surface area of the electrode and the transformation efficiency of the battery.    DETAILED DESCRIPTION - Preparing a dye-sensitized solar battery counter electrode comprises: (i) slowly pouring chloroplatinic acid into a volumetric flask with isopropanol in a mass ratio of 0.2-3:100, ultrasonic-dispersing for 15 minutes, magnetic-stirring for 15 minutes until the solid particle disappears, sealing, depositing the solution and obtaining solution A; (ii) slowly pouring ethyl cellulose into a volumetric flask with terpilenol in a mass ratio of 1:5-15 in water bath at 80 degrees C, stirring completely until the translucent white particle precipitates and obtaining a carrier B; (iii) mixing the solution A and the carrier B in a mass ratio of 1:2-4, stirring the mixture, heating in water bath for 15 minutes and obtaining a screen printing platina paste; (iv) ultrasonic cleaning a fluorine-doped tin oxide conductive glass with deionized water containing a detergent and acetone or ethanol respectively, eluting with deionized water, air drying the conductive glass under an infrared lamp; (v) providing a screen printing plate of 200-mesh, printing the platina paste obtained in the step (iii) on the conductive glass obtained in the step (iv), drying for 15 minutes at 150 degrees C, transferring in a muffle furnace and maintaining the temperature of 350 degrees C for 60 minutes, removing and naturally cooling and obtaining an initial platina electrode; and (vi) heating titanium tetrachloride aqueous solution (0.04-1 mole/l) in water bath at 40-80 degrees C, immersing the initial platina electrode in titanium tetrachloride aqueous solution for 0.5-20 hours, removing the platina electrode, washing the platina electrode with deionized water repeatedly, drying the platina electrode at 120 degrees C, transferring the platina electrode in the muffle furnace, heating at 5 degrees C per minute for 20-60 minutes and removing the platina electrode when the temperature is 400-550 degrees C and cooling.