Preparation method for improving fabric surface of single crystalline silicon solar cell and preparation tool

The invention discloses a preparation method of a fabric surface of a crystalline silicon solar cell and a preparation tool. Firstly, a monocrystalline silicon piece cut by a diamond wire is inserted into a basket which is made of graphite and is provided with an electrode hole; an NH4F solution and an ozone method are used for preprocessing the surface of the silicon piece; then, the silicon piece is put into different electrolytic bathes to perform two-step electric chemical fabric preparation; then, the silicon piece is put into an acid washing bath to be cleaned; finally, drying is performed. The fabric preparation method can accelerate the corrosion speed, and can improve the yield in industrialization production; the consumption of chemicals is reduced; the waste water treatment cost and the environment pollution are reduced. The graphite basket is used for carrying the silicon chip; the graphite is used as an electrode; the pollution of metal irons on the silicon chips can be effectively reduced; the o