Since specific learning disabilities (SLD) are widely observed among students with special needs, it is considered in the high-incidence disabilities category of special education. Students with SLD experience academic problems in reading, writing and mathematics, and difficulty in written expression is among their prominent characteristics. The aim of this study is to determine the effect of the Pick my idea-Organize my notes-Write and say more + Characters-Setting-Purpose-Action-Conclusion-Emotions (POW + C-SPACE) strategy developed on the basis of self-regulated strategy development (SRSD) on story writing skills of students with SLD in Turkey. In this quantitatively designed study, pretest-posttest experimental design with control group was used, and the participants consisted of 23 students with SLD at middle school level. The results indicated that the change between pretest and posttest story writing skills scores of participants in the experimental group was statistically significant compared to the change in the scores of participants in the control group. In addition, the change between pretest and posttest self-regulation scores and attitude for writing scores were statistically significant compared to the difference in the scores of students in the control group. Findings manifested that the POW + C-SPACE strategy had positive impact on the story writing skills of the students with SLD in Turkey. Teachers of students with SLD need to be trained on POW + C-SPACE strategy and future research is needed with different samples of students with SLD and teachers by using various research methods.