In this study, role of different algorithms of management in pistachio orchards during 2010 to 2015 years, on pistachio yield and water use productivity (WUP) was investigated. Using stratified random sampling method, a sample of 100 farmers of Anar and Rafsanjan cities with 286 orchards, was selected. Pearson correlation, variance analysis and regression methods were used for investigate the effect of different management patterns on pistachio yield and determine the factors affecting water productivity. Time trend of Changes in irrigation management pattern of pistachio orchards in the first three years of study (2010-2012) showed that 62.3% of pistachio orchards with Flood irrigation system, 32.5% with Border irrigation system and only 5.2% of the orchards were irrigated with pressurized irrigation system. While the share of these three irrigation systems in the second period (2013-2015) was 41.7%, 51.3% and 7%, respectively. The results showed that the mean of final water productivity in the studied pistachio orchards varied from 66 to 84 gr/m3. Water consumption was in the range of 974 to 27400 m3/ha.year for the electrical conductivity of irrigation water (ECw) in the range of 1100 to 19000 µmohs/cm. Irrigation interval also varied from at least 7 days (in pressurized irrigation) to up to 122 days (in flood irrigation). According to the average consumption per hectare of chicken and cattle manures, eolian sand, k fertilizer and turn of soil tillage (plow), which were 8 tons, 11 tons, 50 trucks, 100 kg and one plow, respectively, the amount of yield increase per hectare of application of each the mentioned inputs and operations were 155.2, 213.4, 195, 290 and 388 kg of dry product, respectively. Therefore, based on the current price of pistachios and the cost of using each of these inputs and operations, their use in increasing water productivity is economical.