1. Antibacterial virus: approximately 0.1% of the nano silver on Escherichia coli, Staphylococcus staphylococcus and other dozens of pathogenic micro-organisms has a strong inhibitory and killing effect. 2. Adding nickel, silver's anti-bacterial, anti-corrosion coatings can also be applied in the protection of cultural relics. 3. Silver nanoparitcles used for preparation of the production of microelectronic components wiring, packaging, connectors. 4. Silver nanopowder is used to produce electronic slurry of microelectronic devices and circuit miniaturization. 5. Efficient catalysts: Silver nano powder used as catalyst, high efficiency, selectivity, and can be used in the reaction process of methanol synthesis catalyst CO2 and H and the like.