Some properties of starch isolated from gamma-irradiated chestnut at doses of $0{sim}0.45;kGy$ were investigated. The treatment increased the water-binding capacity and decreased intrinsic viscosity and amlyograph viscosities. Other properties including swelling power and solubility at $80^{circ}C$, blue value and percent transmittance of starch dispersion were essentially not affected by irradiation at sprout-inhibition dose.