A photosensitive resin composition is provided comprising (A) 100 pbw of a phenolic hydroxyl group-containing resin, and (B) 0.1-18 pbw of an epoxy additive in the form of a compound containing 1-8 epoxy groups per molecule, containing nitrogen, sulfur or phosphorus, and having a molecular weight of 50-6,000. The composition has an improved bonding force to metal wirings.