A descriptive design study was conducted to assess the psychological status of the impact of chemotherapy upon school age children with acute lymphoblastic leukemia in Baghdad city and find out the relationship between Impact of Chemotherapy upon psychological status of school age children with acute lymphoblastic leukaemia and their demographic characteristics like children's( age ,gender, level of education et a)A non-probability (Purposive) sample of 114 children with ALL under chemotherapy was selected in attending hospital wart out pation and counseling clinic.The results of the present study indicated that impact of chemotherapy upon psychological status of acute lymphoblastic leukemia children were effected at moderate level, with regard to relationships among impact of chemotherapy upon psychological status and child's Socio-demographic characteristics,and no significant association was apperThe study concludes that most of the children with acute lymphoblastic leukemia had moderate level, and recommended that Psychosocial support should be provided to school age children and their parent's to facilitate their coping with disease and its treatment. Establishment of counseling clinic especially for treatment of children with acute lymphoblastic leukemia, to maintain care, reduce the anxiety, and their consequently.