The invention provides low-fluoride-silicon waterborne polyurethane emulsion and an elastic film product thereof, and belongs to the technical field of polyurethane and applications thereof. The low-fluoride-silicon waterborne polyurethane emulsion comprises, in weight, 15-40% of diisocyanate, 40-80% of polymer diol, 0.2-15% of polysiloxane diol, 0.4-5.0% of fluorine-containing chain extenders, 1-5% of chain extenders I, 1-10% of hydrophilic chain extenders, 0-5% of cross-linking agents and 0-10% of neutralizers. The materials are polymerized and emulsified to prepare the emulsion. According to the polyurethane emulsion prepared from the materials, the content of fluoride and silicon is low, and the elastic film product prepared from the polyurethane emulsion is high in strength, good in elasticity, surface property, water resistance and compactness, easy to release, free from toxicity and characteristic odor and not sensitized and can prevent adhesion, effectively isolate various viruses and effectively replace elastic film products such as gloves, organ bags, condoms and penetration bags prepared from natural emulsion.