The utility model discloses a special carrier film for preparing an RFID label antenna, comprising a PP surface layer, a PP core layer or a PP bottom layer by recombination, wherein the PP core layer is between the PP surface layer and the PP bottom layer. The base material film of the utility model has low relative cost, excellent thickness uniformity, stable melting point fusing procedure and good insulativity because the utility model is produced by a polypropylene casting mode, and ensures stable frequency range and high decoding rate of the electronic label antenna. In addition, the core layer is added with a thermoplastic elastomer SEBS so that the low temperature resistance and impact resistance of the material are increased; the flexibility and bending resistance of the material are increased; while the added nucleating agent promotes crystalline property of the polypropylene material so that the crystallinity of the material is improved and the stiffness of the material is higher. The bottom layer and the surface layer are processed with corona treatment so as to adapt with subsequent gluing procedure.