This research investigated the effect of co-curricular activities on academic achievements of special educations students with learning disabilities in SMK Permata Jaya, Rengit, Batu Pahat, Johor, Malaysia. 20 students from special educations class session 2015 were selected for moderate level syllabus and another 20 students were using high level syllabus constituted a study sample. Each level of students taught by the same teacher was divided into experimental and control groups. The experimental groups were involved in co-curricular activities and the control groups did not participate in any co-curricular activity. They were two types of co-curricular activities which are physical activities and the other was like debates, speeches and drama. Raw scores of the students from the subject of Science test made up data for the study. Data analysis involved the use of mean scores and t-test of significant difference between two independent group means scores, supported by F-test of homogeneity of two independent group variances It was found that co-curricular activities had significant effect on academic achievements of the experimental groups