The invention relates to a piece of solar super-white rolling glass which is calculated according to the mass percent of oxide, and comprises the components according to proportions as follows: 72.0%-75.2% of SiO2, 1.0%-2.4% of Al2O3, 13.2%-15.0% of R2O, 8.5%-10.5% of CaO, 0-3.6% of MgO, 0.15%-0.38% of Sb2O3 and Fe2O3 being smaller than or equal to 0.01%. In addition, the invention also relates to a preparation method of the solar super-white rolling glass, and the preparation method comprises the following steps: step one, selecting quartz sand, aluminum hydroxide or aluminum oxide, limestone, calcined soda, sodium sulfate, dolomite, antimony trioxide and cullet as raw materials, and preparing and mixing the raw materials; step two, melting and clarifying; step three, calendaring; and step four, annealing and obtaining the solar super-white rolling glass. The solar super-white rolling glass produced by the preparation method has the advantages of high light transmission, good corrosion resistance and weather resistance, long service life and the like, and can be used for a solar power generating assembly for photoelectric conversion.