Polymer latex was obtained by polymerization with the functional monomers which were emulsified with surfactant in water or other solvent under mechanical force. And it can be used as a film-forming material which providing the vital functions in water-based paints, waterproofing coatings, adhesives, inks and other products, such as adhesive property, gloss adjustment, water-resistance, wear-resistance, chemical-resistance, stain-resistance, weatherability and so on.