A visible light-shielding silicone rubber composition is provided comprising (A) an organopolysiloxane, (B) an organohydrogenpolysiloxane, (C) a platinum catalyst, and (D) an azo dye. The azo dye has a light transmittance≦10% in a wavelength range of up to 650 nm and ≧80% in a wavelength range of at least 750 nm when a solution of the azo dye in ethanol is measured by a spectrophotometer. The composition cures into a film which shields visible light, but transmits IR light and is suited for encapsulation of LED.