This study aimed at investigating the effect of an electronic program based on Multiple Intelligences Theory on developing 60 EFL prep school students 'social-emotional skills at Kafr Sakr Formal Language School, Sharkia Governorate in 2022-2023. The participants were equally divided into an experimental and a control group. The researcher adopted quasi-experimental design. To achieve the aim of the study, the researcher designed students' social-emotional skills list, in addition to a pre-posttest based on validating the previous instrument and a rubric for correcting it. The suggested Electronic Program Based on Multiple Intelligences Theory was designed and taught to the experimental group in the first term, while the control group received regular instruction. The results indicated that the experimental group outperformed the control group in the post- Social-Emotional Skills Test administration. It is recommended that the Suggested Program must be adapted to suit the needs of the other educational stages in Egypt.