Nanotechnology is recognized as one of the most promising 21st century technologies. Nanotechnology is the study and use of very small things, and it may be applied in all other science subjects, including physics, chemistry, biology, materials science, and engineering. Nanomaterials may be created using a number of techniques, including physical, chemical, and biological ones. The application of nanotechnology allows textiles to become multifunctional and develop materials with unique properties such as antimicrobial, UV protection, easy-cleaning, water- and stain resistant, and anti- odour. The use of nano titanium dioxide, nano zinc oxide, and nano copper oxide on cotton, wool, and cotton/polyester textiles have been addressed.