covering a carbon fiber fabric with a thermoplastic polyimide non-woven fabric to obtain a laminated structure, pressing the laminated structure together, then spraying polyphenylene sulfide nanoparticles onto the thermoplastic polyimide non-woven fabric, and carrying out a two-stage hot melting preparation process;

wherein the two-stage hot melting preparation process comprises: firstly, in a first stage, heating up to make the polyphenylene sulfide nanoparticles be melted and infiltrated into the carbon fiber fabric uniformly through pores on the thermoplastic polyimide non-woven fabric, and keeping a hot melting time of 5-10 minutes (min); and afterwards, in a second stage, heating up to make the thermoplastic polyimide non-woven fabric be melted and infiltrated into the carbon fiber fabric and cooling down after a duration of heat preservation to thereby prepare the thermoplastic carbon fiber fabric prepreg.