We have developed a new method of fabricating nanoparticles utilizing a mechanical rubbing process. Highly ordered arrays of Au nanoparticles with a diameter of 60 nm have been fabricated on a porous anodic alumina template. Pressure measurements during the mechanical rubbing process confirmed that these nanoparticles were formed only by a mechanical separation process. Our method can be applied to fabricate nanocapsules and has a wide range of applicability to materials that have never been controlled in the nanoscale.