This research investigated the effectiveness of using CALL –based supplementary program for developing some basic English language reading skills of primary stage pupils with academic learning difficulties. The sample of the study consisted of (20) pupils of the 3^rd year primary stage pupils with academic learning difficulties at Taha Hussein Primary School. It utilized the one group quasi-experimental design with its pre-post testing procedures. Instruments of the research included a reading skills test, a diagnostic assessment scale for reading difficulties (Fathy Al-Zayat), and a checklist of some Basic English language reading skills. Results showed that there were statistically significant differences between the mean scores of the participants in the pre-post testing of some basic reading skills favoring the post testing. Moreover, the study concluded that using CALL –based supplementary program proved to be effective and has considerable contributions in developing some basic English language reading skills of primary stage pupils with academic learning difficulties.