The present invention relates to a gray light-sensitive resin composition, a color filter manufactured by using the same and a display element comprising the same. The gray light-sensitive resin composition comprises a pigment dispersion composition, an alkali soluble resin, a photopolymerization compound, a photopolymerization initiator and a solvent. The pigment dispersion composition comprises more than selected from a red pigment, a green pigment, a cyan pigment, a yellow pigment and a purple pigment and a black pigment, and is characterized by when being formed as a curing film of which the thickness is 2.5 micrometers, having a transmissivity more than 30% and less than 75% at 460-530 nm spectral wavelengths, having a transmissivity more than 20% and less than 75% at 580-620 nm spectral wavelengths, and having a transmissivity less than 20% at 690-780 nm spectral wavelengths. The gray light-sensitive resin composition of the present invention has a very excellent anti-external light reflection effect, can substitute a polarizer in the display element, and solves the problems that the high chromatic (gray) reproducibility and machinability of the conventional gray light-sensitive resin composition are insufficient.