Physicochemical characteristics of groundwater in AL-Miqdadiyah town were studied by taking random water samples from six differents wells from July to December 2010. The results were compared with the international standards for drinking-water of WHO and FAO and the iraqian limits . Fourteen parameters were analysed. It was found that most of studied wells waters in the allowed limits for drinking water . Except W1 & W2 which had the hight values of turbidity during summer season only . The present study showed clear differents between winter & summer values in (turbidity , TDS , Cl- , NO2 and Na) . While the remaining characteristics showed exiguous differences in the same period .Although , the most of results refer to the parameters with in prescribed limit of water quality for drinking purpose but the presence of Na ,Mg and Ca ions in addition to the total hardness which considered dangerous health indicator mast attention to select the suitable treatment methods and special health studies on the population which used these waters for different purposes .