The present studies addresses the effect of nano particles on engineering properties of residual soil from Malaysia. This study looks at the innovative work being done by nanotechnology and Nano-materials. Nanoparticles are particles whose dimensions can range between 1 to 100 nm. Due to their extremely small size in nano-scale and ultra high surface area, some nano particles show unique properties that can help to improve physical and mechanical properties of the materials. The residual soil is classified as soil that is in the in-situ weathered remnants of a pre-existing parent rock, the parent rock can be sedimentary, igneous or metamorphic, accordingly the term "residual soil" covers a broad range of materials and possible engineering behaviour.