In order to obtain excellent acrylate emulsion pressure-sensitive adhesive (PSA), reduce cost of PSA and raise the value of tackifying resin emulsion, the present paper discloses a kind of water dispersion pressure-sensitive adhesive composition made of acrylic(ester) monomers with core-shell polymerization and modified with rosin ester emulsion, with the result that while being a water dispersion type pressure-sensitive adhesive composition, the product-modified displays excellent properties on a par with ...