High-fluidity PET/ABS resin composition and preparation method thereof

The invention discloses a high-fluidity PET/ABS resin composition and a preparation method thereof. The composition comprises 10-87.4 parts of low-melting point PET resin, 10-87.4 parts of ABS resin, 2-30 parts of a flexibilizer and 0.6 parts of an antioxidant, wherein the low-melting point PET resin is special PET resin with the melting point of 190-230DEG C; and the flexibilizer is at least one of ethylene-vinyl acetate, ethylene-methyl acrylate, ethylene-ethyl acrylate, ethylene-butyl acrylate, low density polyethylene, a maleic anhydride grafted ethylene-octylene copolymer, an ethylene-ethyl acrylate-glycidyl ester copolymer and an ethylene-butyl acrylate-glycidyl ester copolymer. The PET/ABS resin composition prepared through optimizing the variety and the use amount of the ABS resin, the low-melting point PET resin and the flexibilizer has the characteristics of low melting point and high toughness, and can be widely applied to injection molded products.