Polyacrylate emulsions are widely utilized due to their excellent adhesive properties, environmental friendliness, and film-forming capabilities. However, the application of polyacrylate films is somewhat limited by their inherent drawbacks, such as thermal adhesion, cold brittleness, and flammability. Consequently, there is a need for their modification. In this thesis, a modified acrylate emulsion was prepared using 2-hydroxyethyl methacrylate phosphate (PM-2), vinyltriethoxysilane (TEOS), and 2-acrylamido-2- methylpropanesulfonic acid (AMPS) as functional monomers through the seed emulsion polymerization method. The experimental results demonstrated that when BA + MMA constituted 30% of the composition, and the emulsifier, initiator, PM-2, TEOS, and AMPS accounted for 6%, 1.2%, 2%, 4%, and 3% of the monomer quantity, respectively, the modified emulsion exhibited good stability. The tensile strength of the modified polyacrylate film increased from 3.21 MPa before modification to 7.12 MPa after modification, and the flame retardant performance reached the highest level of 94V-0. It is evident that modification can significantly enhance the mechanical strength and flame retardant properties of polyacrylate films. This research provides a reference for further study and application of polyacrylate emulsion.