Acrylate latex pressure sensitive adhesive(PSA) was synthesized via pre-emulsified semicontinuous seeded emulsion polymerization, using Environment-friendly Polymeric Emulsifiers LR-10/LG-20 as hybrid emulsification systems.The effects of emulsifier proportion, content and kinds on performances of PSA were respectively investigated. The other relative performances were then characterized. The results showed that the stability of emulsion is best when the m(LR-10):m(LG-20)=3:1; The results of gel permeation chromatography(GPC) revealed that the molecular weight and molecular weight distribution (MWD) decreased as the increase of emulsifier content. The particle size of latex and PDI reach to the minimum when ω(emulsifier)=3%, at the same time the adhesive property and water resistance are optimal, which the contact angle of latex film was 112? The results of FTIR indicated that the whole monomers and emulsifiers participate in emulsion polymerization reaction; Compared with conventional emulsification systems, the adhesive property of Environment-friendly Polymeric Emulsifiers is better.