NOVELTY - Solution (B) obtained by catalytically reacting mixed liquid obtained by adding coupling agent and crosslinking agent to organic solvent, in presence of catalyst, is added to solution (A) obtained by adding organic silicone resin to organic solvent, stirred and grafting reaction is carried out. Resultant mixture is cured to obtain liquid (D). Liquid (C) obtained by adding silica sol, titanium sol, zirconium sol and/or aluminium sol to organic solvent, is added to liquid (D), and additive is added and reacted to obtain modified organic silicone resin coating solution.    USE - Preparation of modified organic silicone resin coating used for manufacturing solar cell encapsulation glass (claimed).    ADVANTAGE - The method efficiently provides modified organic silicone resin coating having excellent stability and bonding force. The coated film formed of modified organic silicone resin coating has excellent hardness, abrasion resistance, weather resistance, reflection-reducing effect and reflection rate of more than 3%.    DETAILED DESCRIPTION - An organic silicone resin is added in an organic solvent to obtain a solution (A). A coupling agent and crosslinking agent are added to the organic solvent to obtain mixed liquid. Under stirring condition, mixed solution and a catalyst are mixed, and catalytic reaction is carried out to obtain solution (B). Silica sol, titanium sol, zirconium sol and/or aluminium sol are added in the organic solvent to obtain solution (C). The solution (B) is added to solution (A), stirred, and organic solvent is continuously added, and grafting reaction is carried out. The resultant mixture is cured at room to obtain liquid (D). The liquid (C) is added to liquid (D), and an additive is added and continuously stirred and reacted for preset time to obtain modified organic silicone resin coating solution. The organic silicone resin is hydroxyl group-containing organic silicone resin. The crosslinking agent is methyl trimethoxy silane, methyl triethoxy silane, phenyl trimethoxy silane, phenyl triethoxysilane, dimethyl diethoxy silane and/or diphenyl dimethoxy silane. An INDEPENDENT CLAIM is included for manufacture of solar cell encapsulation glass, which involves coating modified silicone resin coating solution on a glass substrate after cleaning and drying, forming antireflection film, and subjecting to strengthening treatment.