Mindium L. belongs to Campanulaceae family, which have important bush species and more than 7 species in world and 3 species in Iran have been reported. In this investigation essential oil composition of vegetative and reproductive organs Mindium laevigatum (Vent.) Rech. f.& Schiman-Czeika species from kashan Rahagh and Shahsavaran habitats have been studied. The stems and fruits of plant were collected in spring 2011 and dried in shade (at room temperature) and subjected to volatile fraction were isolated by Simultaneous distillation extraction (SDE) and analyzed by using GC and GC-MS. The results showed that, 43 components were identified in fruits essential oil and 34 components were identified in essential oil stems of Kashan Rahagh habitat. 42 components were identified in fruits essential oil and 44 components were identified in essential oil stems of Kashan Shahsavaran habitat. Major components of fruits essential oil of Kashan Rahagh habitat were heneicosane (9.58%), palmitic acid (7.41%), p-vinyl guaiacol (4.97%) and dihydro carveol acetate (4.47%). Major components of stems essential oil of Kashan Rahagh habitat were palmitic acid (30.93%), linoleic acid (10.32%), myristic acid (5.97%) and pelargonic acid (4.25%). Major components of fruits essential oil of Kashan Shahsavaran habitat were linoleic acid (18.63%), palmitic acid (14.13%), heneicosane (7.47%) and nonadecane (3.52%). Major components of stems essential oil of Kashan Shahsavaran habitat were palmitic acid (33.67%), linoleic acid (6.56%), ethyl palmitate (5.32%) and eugenol (3.14%). Parts of major essential oil components of vegetative and reproductive organs of plant at two habitats, were waxy and heavy compounds.