Due to Indium Oxide have good characteristics of high purity and fine particles, they are extensively applied in color-glass, ceramic, alkaline-manganese battery andchemical reagent industries. Over the years, they are mass-produced in high-new technology and military fields, such as photoelectricity industry. Especially it can be made into ITO, transparent electrode and transparent thermal reflector,etc,which is used for manufacturing of panel display and demist. It is one of research hotspots among today information hi-tech fields.