The current study aimed at developing the EFL secondary school students' composition performance via using a strategy based on graphic organizers and some pre- writing prompts. The study adopted the quasi- experimental design. The participants of the research were forty first year secondary school students. They were selected from Faquos secondary school for girls, Sharkia Governorate, Egypt in the Academic year 2023/ 2024. They were divided equally into an  experimental group and a control one. The researcher designed a checklist, a pre-post composition performance test and a rubric. The experimental group was taught by the use of a strategy based on graphic organizers and some pre writing prompts,  whereas the control group was taught by the use of the traditional method. The data were analyzed using the Statistics Package for Social science (SPSS Ver 26). The study results revealed that there was a statistically significant difference at (0.5) between the mean scores of the experimental group in the pre-post administration favoring the post administration.  Furthermore, it could be concluded that the suggested strategy based on graphic organizers and some pre writing prompts was effective in developing EFL secondary school students' composition performance.