NOVELTY - Epoxy resin system comprises resin comprising (wt.%) low-viscosity hydantoin epoxy resin (5-50), high-purity low-viscosity bisphenol A epoxy resin (40-75), bisphenol F-type epoxy resin (5-15), glycidyl amine type epoxy resin (0-8), functional auxiliary agent (0.5-10), thixotropic agent (0-3), and epoxy active diluent (2-20); and curing agent comprising (wt.%) amine curing agent (70-95), functional auxiliary agent (5-15), pigment (0-5) and filler (0-5).    USE - Method for producing epoxy resin system used for megawatt-grade wind power generator blade.    ADVANTAGE - The epoxy resin system has reaction speed and exothermic peak temperature that can be adjusted, has casting body provided with excellent mechanical property at the same time is provided with a relatively high glass transition temperature value and good fiber wetting property, can shorten production time when filling the need, and can effectively improve the production efficiency.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for production of epoxy resin system comprising adding epoxy resin, active diluting agent and functional auxiliary agent at normal temperature into a reaction kettle, vacuumizing, controlling at 700-760 mm mercury (mmHg), raising the temperature to 45-50 degrees C, stirring and reacting for 3 hours with stirring speed of 350-450 revolutions per minute (rpm), then adding thixotropic agent, stirring to react for 2 hours with stirring speed of 500-600 rpm; discharging, filtering, filling to obtain resin part product; adding amine curing agent and functional auxiliary agent at normal temperature into the reaction kettle, and vacuumizing and controlling at 700-760 mmHg, raising the temperature to 40-80 degrees C, stopping vacuumizing, stirring at 200-300 rpm for 2 hours, then adding pigment and filler, stirring at 300-500 rpm for 1-5 hours, discharging, filtering and filling to obtain the curing agent part; and placing the resin part and the curing agent part in a mixing machine, controlling liquid temperature at 25-40 degrees C, and automatically and uniformly mixing.