The present invention relates to an impact modifier composition for an epoxy resin capable of improving impact strength and dispersibility while maintaining properties such as excellent thermal stability, adhesiveness and chemical resistance of an epoxy resin, an impact modifier made therefrom, a method for producing the same, And an epoxy resin composition containing the same. Accordingly, the impact modifier composition for an epoxy resin is excellent in impact resistance and can be improved in dispersibility in the epoxy resin, so that the mechanical strength, adhesiveness, and thermal stability (particularly, thermal stability from a cryogenic temperature to a high temperature) The impact strength can be improved. Therefore, the impact modifier composition according to the present invention, the impact modifier prepared therefrom, and the epoxy resin composition containing the same can be suitably used in industrial industries requiring the same, especially structural composite materials and reinforcing materials that require impact strength and fracture toughness, It can be easily applied to a plastic field.
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