The present study aimed at investigating the effectiveness of video captioning  in enhancing  EFL secondary school students' spoken discourse competence. The study followed  the quasi-experimental one group design. The participants were 30 first year secondary school students at Yasser Freij Issawi Martyr Lieutenant –Colonel Secondary School at Shebin Elkom, Menoufia Governorate during the second semester  of  the academic year 2021/2022. To identify the most important and required spoken discourse competence components for the participants,  a checklist of spoken discourse competence components was  developed and validated by 10  EFL Jury  members. A  pre- and a post communicative  competence  test  was developed . A communicative competence rubric was adopted to grade and analyze  students EFL spoken discourse competence components. Finding of the study revealed that there was a statistically significant  difference  at 0.01 in the post assessment  of spoken discourse competence  test in  favour of the post-assessment. Consequently, video captioning was effective in  enhancing  EFL spoken discourse competence  among secondary school students.