This paper reports the development of nano SiO2incorporated nano zinc phosphate coatings on mildsteel at low temperature for achieving better corrosion protection. A new formulation of phosphatingbath at low temperature with nano SiO2was attempted to explore the possibilities of development ofnano zinc phosphate coatings on mild steel with improved corrosion resistance. The coatings developedwere studied by Scanning Electron Microscopy (SEM)