The invention discloses a PESD (polymer electrostatic discharge suppressor) functional SPUR adhesive which comprises, by weight, 100 parts of silane-terminated polyurethane prepolymer, 5-10 parts of methyl silicone oil, 700-900 parts of oxide semiconductor powder, 1-5 parts of dibutoxy diacetoxyl silane, 1-5 parts of photo-initiators and 0.5-1 part of organic tin. All components are sequentially placed into a stirring reactor and uniformly mixed in an anhydrous dry environment during preparation, the adhesive is preserved in a light-resistant dry environment and can be cured and adhered underillumination or water vapor is added when in use, and the adhesive can be used for insulating adhesion of flexible electronic elements and can function in line insulation and ESD over-voltage electrostatic resistance in a circuit.