The research aimed at investigating the effectiveness of employing digital simulation on developing technology achievement for ninth female graders in Palestine. The research used the Developmental method through preparing and designing digital simulation program and achievement test. The tools were applied on a sample of 70 female ninth students at Al-sheekh Agleen high elementary schools for girls of Palestinian ministry of education and higher education. They were divided into two groups, experimental and control. Digital simulation program was used in teaching the experimental group, while the traditional method was used with the control one in the second term of the year (2013). The results of research clarified there were significant differences at (α ≤ 0.05) in the mean of students scores in the post test of the control group and experimental one in favor of the experimental. It also revealed that digital simulation program gained effectiveness at Black Ratio (1.529) in a achievement test for female ninth graders.