Soil structure and properties are affected by vegetation. Plants change soil nutrition status, moisture regime and ventilation and by the addition of plant residues to the soil, nutrient status improves. Rhizobium symbiosis withleguminous family is the largest and most important nitrogen-fixing system in farmlands. Halimodendron halodendron species is a nitrogen-fixing shrub grows in some parts of Azerbaijan, Hamedan, Kermanshah, Isfahan, Chaharmahal and Bakhtiari, Fars, Khorasan, Tehran, Semnan counties. This goal of this study was to investigate the effect of H. halodendron on physical and chemical properties of soil and then examining the growth of understory plants in Ardasteh and Muteh regions. Sampling of H. halodendron rhizosphere (A small region of the soil which is directly influenced by root and associated with soil microorganisms) and rhizosphere of Berberis integrrima Bunge (a non-legume plants) as well as the control (an area quite near to these shrubs but without any visible effects of vegetation) was conducted in two soil depths 0-20 and 20-40 cm in a completely randomized design. Afterwards, the chemical properties of the soil such as total nitrogen (TN), organic nitrogen (ON), mineral nitrogen (MN), lime percentage, conductivity (EC), pH and the soil organic carboncontent (OC) were measured. Furthermore, analysis of indicator plant was performed to investigate the effect of H. halodendron on total nitrogen (TN) content and understory plants production (PP) in laboratory scale. The results showed that the amount of TN, ON, MN, TN of the plant, (PP), (OC), absorbable potassium (AP), ECwas observed in rhizosphere of H. halodendron shrubs is more then B. integrrima and finally in control. Furthermore, the highest amount of limestone, pHand sand was observed in the rhizosphere of the control and next in the rhizosphere of B. integrrima and then in rhizosphere of H. halodendron . Moreover, the TN, ON, TN of the indicator plant, production of the indicator plant, OC, soil potassium,EC and sand in 0-20 cm depth was higher than the lower depth in both study regions.Similarly, the MN, pH, clay and silt at 20-40 depthhigher than the superficial soil in both study areas. Generally, the effect of vegetation on most of the studied parameters is significant and there is a significant difference between H. halodendron and B. integrrima and control treatments that can be a sign of the effect of H. halodendron on soil properties. Keywords: Halimodendron halodendron , Berberisintegrrima ,nitrogen-fixing,indicator plant, arid land