The invention relates to a preparation method and application of a comb-shaped 
benzene-horse 
polymer water-based dispersant. The comb-shaped 
benzene-horse 
polymer water-based dispersant is biodegradable and does not contain 
alkylphenol; the comb-shaped 
benzene-horse 
polymer water-based dispersant prepared by the invention has an anionic-nonionic-comb-shaped structure, the molecular structure contains a plurality of 
pigment adsorption groups such as aromatic rings, 
tertiary carbon 
alkyl, carboxyl, hydroxyl, amido and polyether, and the comb-shaped benzene-horse polymer water-based dispersant has excellent 
wetting dispersibility, excellent 
chemical resistance, 
water resistance and 
aging resistance, can improve the gloss and tinting strength, can improve the 
pigment content, has excellent 
system compatibility, low-foam property and excellent low-
viscosity stability, prevents flooding and floating, can be used for preparing resin / resin 
system-free high-
solid-content low-
viscosity pigment concentrated 
slurry dispersions, such as organic red, yellow and purple pigments, 
inorganic pigments and matting 
powder, and is particularly suitable for dispersion of 
carbon black and 
phthalocyanine pigments; the dispersant can also be used for mixing and 
grinding organic pigments, anti-
rust pigments and fillers, and is suitable for water-based systems such as water-based color paste, water-based industrial paint, water-based ink, water-based anti-
corrosion and anti-
rust primer and the like.