This research was carried out through the 201-2011 and 201-/2012 seasons on 26-year-old trees of AL– Ashouri Pistachio cultivar grown in clay soil, in a private orchard in Souran region (Hama province). Four types of organic green fertilizers (Lentils, Vetch, equal mixture from Lentils and Vetch and mix of these legumes with barley), in addition to the control, to study their effects on some quantitative and qualitative characteristics of pistachio nut. Results showed that the use of green fertilizers caused significant increase in studied indicators and the best treatment was mix of legumes with barley (45% Lentils, 45% vetch, 10% Barley), which achieved the highest significant values، where average of weight of the 100 nuts was 107.45 g during the two seasons, the average of weight of the 100 kernel was 67.08 g, average of length of shell was 20.85mm and an annual yield was 32 kg/ tree, compared with control, which achieved 87.50g, 40.25g, 18.08 mm and 16.75 kg, respectively.