PURPOSE: To provide a method for producing a vinyl chloride-based resin emulsion, good in water and chemical resistances and further having excellent preservation stability and weather and light resistances.

CONSTITUTION: This emulsion is obtained by carrying out the emulsion copolymerization of a mixture of polymerizable monomers comprising (a) vinyl chloride monomer and (b) an alkyl(meth)acrylate in the presence of a polymerization initiator and an emulsifier and keeping the pH of the reactional system at 5-7 from the initial stage of the copolymerization until the average rate of polymerization of the polymerizable monomers attains ≥90% in conducting the emulsion copolymerization of the mixture of the polymerizable monomers and producing the vinyl chloride-based resin emulsion.