Juniperus sabina L. is normally low shrub with procumbent or obliquely ascending branches, or rarely a small tree to about 4 m, monoecious or dioecious. Juniperus sabina L. is a medicinal plant used in folk medicine as an abortive. Its lignanes have antineoplastic and antiviral activity, and also essential oil of Juniperus sabina L. has shown antibacterial and antifungal activity. The aim of this research is to extract and measure the chemical compounds of essential oils of fruits and aerial parts of the plant Juniperus sabina L. which are collected from the North Highlands located in the Mazandaran province. In this study, the components of Juniperus sabina L. (fruits and aerial parts), after extraction essential oils by Clevenger apparatus, their compounds were analysed and identified by GC/MS. Essential oils from fruits of the Juniperus sabina L., were shown 27 compounds that the Sabinene in 50.31% maximum, and α-Thujene with 0.32% were the lowest amounts in the oils. While the essential oils from aerial parts of Juniperus sabina L. 40 compounds were identified, that Sabinene by 36.59% was the highest amount and α-Thujene by 0.11% has at the lowest percentage.