PURPOSE: Provided is a photosensitive resin composition for a flexo printing plate, which has superior curability to such an extent that any additional curing process is not required, thereby reducing the process and cost in production, and is capable of producing a resin film with high solvent resistance and elasticity. CONSTITUTION: The photosensitive resin composition comprises 40-80 wt% of a polybutadiene-based photocurable oligomer having at least one acryloyl or methacryloyl group in a molecule; 10 to 50 wt% of a reactive monomer having at least one acryloyl or methacryloyl group in a molecule; 1-15 wt% of a photoinitiator; 0.01-3 wt% of a leveling agent; and 0.01-3 wt% of an anti-foaming agent. In the photosensitive resin composition, the polybutadiene-based photocurable oligomer is prepared by reacting a poly-butadiene polyol having a ratio of 1,2-vinyl:4-vinyl of 9:1 or more and containing a hydroxy group, with (meth)acrylate having polyisocyanate and a hydroxy group in a molar ratio of 1:0.5-1.5.
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