NOVELTY - An aluminum slurry preparing method involves preparing an inorganic binder by mixing silicon dioxide, boron trioxide, aluminum oxide, bismuth(III) oxide, phosphorus pentoxide and zinc oxide, putting in furnace, and quenching. UV organic binder is prepared by mixing high molecular modified polymer, monomers, diluent, stabilizer, adding in tank, sufficiently stirring, observing the material to dissolve followed by preparing aluminum slurry by taking high-purity aluminum powder, inorganic binder, organic binder, photoinitiator, adding additives in the tank to obtain a slurry for polishing.    USE - Method for preparing aluminum slurry for silicon solar battery.    ADVANTAGE - The slurry has improved the performance and emissions of organic vapors to solve the problem of air pollution outdoors.    DETAILED DESCRIPTION - An aluminum slurry preparing method involves preparing an inorganic binder by mixing 2-3% silicon dioxide, 15-30% Boron trioxide, 1-3% aluminum oxide, 40-60% bismuth(III) oxide, 3-5% phosphorus pentoxide and 10-20% zinc oxide, drying at 140-150 degrees C for 3-4 hours, putting in furnace at 890-910 degrees C for 0.5-1.5 hours, and water quenching after dry milling or less to 10 mu m. UV organic binder is prepared by mixing 50-65% high molecular modified polymer, 15-35% monomers, 10-20% activity diluent, 10-20% stabilizer respectively after weighing, adding in stainless steel mixing tank, sufficiently stirring at room temperature, observing the material to dissolve wholly complete until the operation conditions be yellow or red, to avoid irradiation of UV, where the high molecular modified polymer is selected from epoxy acrylates, acrylated urethane oligomer, copolymer, styrene-butyl-modified copolymer resin, rosin-cis dry modified resin, UV reactive monomers are pentaerythritol triacrylate, trimethylol propane triacrylate, triethylene glycol diacrylate, dilutent is epoxy diluent, hydroxyethyl acrylate, or hydroxypropyl acrylate and the stabilizer is hydroquinone, anisole or hydroxymethyl, followed by preparing aluminum slurry by taking 70-80% high-purity aluminum powder, 2-8% inorganic binder, 10-25% organic binder, 2-5% photoinitiator, adding additives in the formulation tank and sufficient stirring, on a three-roll mill to obtain a slurry for polishing, where the sufficiently uniform distribution of the components in the slurry is less than or equal to 25 mu m, the slurry viscosity is 25000-35000 mPa.s/25 degrees C, the high purity aluminum metal powder is spherical, the average particle size of 6.0-8.0 mu m, purity of greater than 99.80%, bulk density of 0.45 -0.6 g/cm3, the photoinitiator is selected from ethers, ketones, 4-(N-N-dimethylamino) benzoate i.e. EPD, 2,4,6 - trimethyl benzoyl diphenyl, phosphine oxide of TPO, additives are 0P10, TEGO Airex 920 (RTM: Highly compatible deaerator concentrate), TEGO Dispers 655 (RTM: Pigment-wetting and dispersing additive), TEGO Fomaex N (RTM: Defoamer concentrate), n-butanol, and methyl silicon oil.