Cefmetazole sodium is mainly used to treat the following infections caused by the sensitive bacteria: it is used to treat the respiratory system infection caused by the sensitive bacteria such as staphylococcus, Escherichia coli, klebsiella, indolenegative and positive bacilli, bacteroides and so on, biliary tract infection, peritonitis, urinary system infection, uterus and accessory infection, skin and soft tissue infection and postoperative infection prevention, etc. . This medicine may enter in the inflammation cerebrospinal fluid massively, treats suppurative meningitis.