PROBLEM TO BE SOLVED: To provide a photosensitive resin composition for a printing plate excellent in handling property and resolution and excellent in chemical stability.SOLUTION: The photosensitive resin composition for a printing plate comprises: a thermoplastic elastomer (A) having a polymer block comprising a monovinyl-substituted aromatic hydrocarbon and a polymer block comprising a conjugate diene; a liquid diene (B); an ethylenically unsaturated compound (C); and a photopolymerization initiator (D); and moreover, a stabilizer (E) by 0.1 to 5 mass%, which has a phenolic structure and includes an alkyl group and a sulfur atom having a covalent bond with the alkyl group in the molecule.