An epoxy resin composition is provided. The epoxy resin composition includes a first aromatic epoxy resin represented by formula (I), and an amino compound selected from a group that includes 4,4′-methylenedianiline, 4,4′-ethylenedianiline, 4,4′-bis(4-aminophenoxy)biphenyl and 1,4-bis(4-aminophenoxy)benzene, wherein the ratio between the epoxy groups of the first aromatic epoxy resin and the amino groups of the amino compound ranges from 1:1 to 2:1.