The invention relates to a matte water-in-water base paint and a preparation method thereof, which is prepared from the following components by weight: 30-50 parts of deionized water, 0.2-0.3 parts of a dispersant, and 0.2-0.3 parts of a defoaming agent 0.5 parts, 1.0-2.0 parts of
antifreeze, 1.0-2.0 parts of film-forming aids, 1-5 parts of expanded vitrified microbeads, 1-5 parts of
titanium dioxide, 1-8 parts of kaolin, 0.8-2.0 parts of
cellulose, pH 1.0-2.0 parts of conditioner, 30-50 parts of
emulsion, 0.1-0.5 parts of
preservative, 5-10 parts of 10wt% protective
colloid solution and 0.1-0.5 parts of thickener; can reduce the gloss of water-in-water base paint, reach Matte effect; the matte water-in-water paint formulated with the matte water-in-water base paint is also provided, and the
mass ratio is (3‑5): (2‑4): (3‑5) The matte water-in-water base paint,
granulation liquid and continuous phase are prepared; the overall gloss of the matte water-in-water paint of the present invention is low, so that when it is sprayed on the real stone paint, there will be no bright spots and blooming phenomenon, and the
imitation stone The effect is realistic and natural.