The resin used in UTFC prepreg system is fast curing epoxy resin, which can be impregnated with carbon fiber and glass fiber to make unidirectional and fabric prepreg; It is suitable for autoclave, vacuum bag pressing and mould pressing; It can be cured within 3minutes at150℃, which can greatly reduce the production cost of carbon fiber composite and improve the manufacturing efficiency of composite components. Suitable for sports equipment, rail transit, automobile, boat manufacturing and other fields