SUMMARY
The eradication of Helicobacter pylori is important for the treatment ofpatients with infection of gastrointestinal system. However, there were only a few reports on anti-Helicobacter pylori activity of traditional medicines. The anti-H. pylori activity of n-hexane extract, chloroform extract, etanol extract and fraction of n-hexana of Lempuyang wangi (Zingiber aromaticum) was carried out by agar dilution method and chloramphenicol was used as positive control. Prior to assessment, identification of H. pylori by urease, oxidase and catalase tests was done. Only n-hexana extract assayed that inhibit the growth of H. from Malang with Minimal Inhibitory Concentration (MIC) 1.25 mg/ml and no extract or fraction of Lempuyang wangi could inhibited the growth of H. pylori from Mataram.