The invention relates to environment-friendly high-strength 
emulsion paint and a preparation method thereof. The 
emulsion paint is prepared from, by weight, dispersing agents, 
defoaming agents, 
quartz powder, kaolin, 
titanium dioxide, 2-amino-2-methyl-1- propyl 
alcohol, 
propylene glycol, 
emulsion and water. The preparation method comprises the steps of 1, pouring the water into a container, and starting stirring; 2, adding the dispersing agents and part of the 
defoaming agents, conducting stirring, then adding the kaolin, the 
titanium dioxide and the 
quartz powder, and then conducting dispersion for about 30 minutes; 3, after the mixture is dispersed uniformly, adding the 2-amino-2-methyl-1- propyl 
alcohol, the 
propylene glycol and the remaining 
defoaming agents, and conducting dispersion till the mixture gets uniform and no particle exists; 4, adding the emulsion, and conducing dispersion for about 30 minutes. The environment-friendly high-strength emulsion paint has the effective advantages of being environment-friendly, 
mildew-proof, alkali-resistant, free of color 
fading and chalking, scrubbing-resistant, great in adhesion, good in application property and high in covering power and is a top-selection competitive product for building wall decoration of houses, offices, projects and the like.