Irrigation with magnetized water can be a propitious technology in agriculture under arid conditions. Field experiment was carried out to investigate impacts of magnetic treatment on irrigation groundwater quality and in turn impacts of magnetized water on irrigated sandy soil properties and peach crop production under desert conditions.  Results of this study indicated that there were no significant changes in water suitability criteria for irrigation with magnetized water from unmagnetized significantly were observed by magnetic field treatment. However, irrigation with magnetized water increased water and fertilizer use efficiency and productivity and consequently increased peach crop yield over irrigation with unmagnetized water.   Results of this significantly study showed that when sandy soil were irrigated with magnetized water, soil moisture content in root zone increased from 9.45% for control treatment to 12.03 % in the first 200 m irrigation distance from the magnetic field device.  Moisture content in root zone was significantly decreased as the irrigation distances increased from 200 to 400 and 600 m distances.  This indicates that the effect of magnetizing irrigation water decreases with increasing the irrigation distance from the magnetic device at the head of the field. It could be concluded that, using magnetic technology for groundwater treatment in arid regions would increase the possibility of using saline water for safe irrigation on the long-run.