This product is manufactured from neisseria meningitidis serogroups A, C, Y and W135 inoculated in modified semi-composite liquid media through culturing, harvesting, sterilization, purification, separate extraction of neisseria meningitidis serogroups A, C, Y and W135 capsular polysaccharide antigens, mixing, addition of appropriate amount of lactose and lyophilization. It contains neisseria meningitidis serogroups A, C, Y and W135 capsular polysaccharide antigens, sterile water for injection and lactose, but no antibiotics.