Series of nano silver solutions with antibacterial functions are key products on medical antibacterial field. Nano silver is a broad-spectrum antimicrobial agent, which can kill more than 650 kinds of bacteria, such as Staphylococcus aureus, Escherichia coli, Candida albicans, and so on. Reliable, no drug resistance, safe, non-toxic, non-irritating, direct contact with the wound, promoting wound healing. It can be used to produce nano silver gynaecological gel and to treat gynecological diseases.