A carbon fiber core, comprising a carbon fiber core body, wherein the carbon fiber core body comprising, from top to bottom, a diversion layer, an adhesive layer I, a wrapping layer I, an adhesive layer II, a carbon fiber layer, a fluff pulp layer, a water-absorbent resin layer, an adhesive layer III, and a wrapping layer II;
- the wrapping layer I, the wrapping layer II, and the core layer between them are integrally provided with a plurality of liquid-permeable and air-permeable holes;
- the mass ratio of each component of the carbon fiber core body is:
- diversion layer:adhesive layer I:wrapping layer I:adhesive layer II:carbon fiber layer:fluff pulp layer:water-absorbent resin layer:adhesive layer III:wrapping layer II=10-80%:0.5-5.0%:2-40%:0.5-5.0%:2-90%:0-95%:0-25%:0.5-5.0%:5-60%.