The invention provides a fluosilicic modification water-soluble 
acrylic resin dispersion and an application thereof. The dispersion is prepared from 20-50% of non-functional (methyl) acrylic ester, 5-35% of fluorinated acrylic ester 
monomer, 5-15% of carboxyl group-containing 
alkene monomer, less than or equal to 15% of vinyl 
monomer, 2-20% of (methyl) hydroxyl 
acrylate, 1-5% of organic 
silicon modified monomer, 15-30% of low carbon 
alcohol, 0.5-4% of inhibitor and 0.1-1.8% of molecular 
regulator according to a radical 
solution polymerization method. Based on 
solid parts, the acidic value of the dispersion is 20-100 mg KOH / g; the glass-
transition temperature is 5-40 DEG C; the dispersion has a good appearance and 
dispersion stability as well as good water 
diluent property; a film obtained by cross-linking and curing a polycarbodiimide cross-linking agent and the dispersion has excellent water tolerance, 
solvent tolerance, high temperature tolerance, smooth property, 
stain tolerance and 
humidity resistance; the adhesion and 
hardness are improved; and the dispersion has strong practicable value and can be used for substrates such as wooden wares, metals, plastics and the like.