Structural color is commonly observed phenomenon in nature such as Morpho Butterflies, beetles, etc. Thin film interference, diffraction grating, scattering and photonic crystals are the the most common fundamental mechanisms of structural color. Iridescent structural color can be expressed in the incident angle with the Bragg-Snell Law[1]. Monodisperse colloidal particles can be used to develop structural colored materials by taking inspiration from the nature because they have the same length scale as the wavelength of visible light. In this study, we examined the fabrication of mechano-sensitive nanostructural film based on colloidal nanoparticles. First of all, silica nanoparticles synthesized at different sizes by using Stöber Process. Langmuir-Blodgett deposition was applied to obtain silica nanoparticle arrays. Afterwards, the assemled silica nanoparticles were embedded in an elastomer matrix. The generation of structural coloration upon stretching was examined in fabricated elastomer films. References 1. Kinoshita, S. and S. Yoshioka, ChemPhysChem, 2005. p. 1442-1459.