Butyl BA, vinyl acetate, acrylic acid, sodium sulfate, waterborne rosin resin were respectively used as soft monomer, hard monomer, functional monomer, emulsifier, initiator, adhesion agent to prepare water-based emulsion for paper-plastic laminating adhesive through pre-emulsifying method. The effects of their concentrations on peeling strength and viscosity were studied in details. The optimum technique parameters were obtained as follows: butyl BA 65.3%, vinyl acetate 21.2%, acrylic acid5.5%, sodium sulfate 3.8%, ammonium per sulfate 0.4%, waterborne rosin resin 3.0%, polymerization reaction time 2.5h.