The main aim of this research was to determine the extent to which the Express theater Workshop develops the oral expression in the students of an Educational Institution-Trujillo, 2018. For this purpose, it was applied a test to measure oral expression which was composed of 12 items in a sample of 64 students. The type of this research was applied, since it sought to provide a solution to the problem identified through the application of an Express theater workshop. Finally, the results achieved in this reserach have shown a significant influence between the Express theater workshop and the oral expression