To provide an epoxy resin composition excellent in adhesion performance and flexibility not only in a range from a low temperature (about -20°C) to room temperature but at a high temperature (about 80°C) and preferably usable as a structural adhesive.

The epoxy resin composition contains an epoxy resin (A) and core-shell type rubber particles (B), wherein the epoxy resin (A) contains a urethane-modified epoxy resin and/or a rubber-modified epoxy resin, the core-shell type rubber particles (B) have a structure having at least three layers, that is, a core layer, an intermediate layer and a shell layer, and the core-shell type rubber particles (B) are surface-modified with an epoxy group and/or a functional group which reacts with an epoxy group.