Background: Zhumeria majdae is one of the most important, unic and endomic species of Hormozgan Province which used for diarrhoea, stomachache, cold, headache, wound and also as coolness from from ancient times by natives people of Hormozgan. Objective: The aim of the present study was to detect and compare the constituents of the essential oils of Zhumeria majdae at flowering stage in Geno, Sarchahan and Tangezagh mounts regions of Hormozgan Province. Methods: The leaves of Zhumeria majdae were collected at flowering stages. The essential oil of the leaves obtained by hydrodistillation using Clevenger type apparatus, was analysed by GC and GC/MS. Results: Essential Chromatogram of Zhumeria majdae shows that in Geno mount’s species 17 compounds, in Sarchahan mount’s 22 compounds and in Tange zagh mount’s 14 compounds, were exist. Oil yeild in that three regions were, in turne, 6.2, 6.1 and 5.3 percent. Linalool and Camphore were major compounds. Gama Terpinene, Octa 3-Carene ,Octan-3-one, Myrcene, Beta Bisabulene,Thymole and Terpinolene in Geno mount, Cis and Trans Linalool oxide, Linalool, Camphore, Neral, Geraniol, Geranial, Beta Elemene and Alpha Terpineol in Sarchahan mount and Alpha Pinene, Camphene, Orto Cymene, Limonene, Borneol, Nerol and Cis Jasmone in Tangezagh mount were more than other compounds. Conclusion: The numbers and contents of constituents of essential oils of Zhumeria majdae at flowering stages in various parts of Hormozgan province are different.