This paper aims to report a research carried out within ninth graders at Silvano Caicedo Giron School in the Rural Zone of Buenaventura – Valle del Cauca. The main objective of this research was to detemine how EFL students’ interaction occur when implementing Task-Based learning in English lessons. To conduct the study, the type of design chosen was the action research due to it allowed to identify the problem of students’ interaction in English class and describe a way of how to improve it through implementing TBL. The instruments to collect the data were students’ intervews, observacion of video-recordings and journal,as they are useful sources to gather and analyze the data about students’ interaction. as final results it is found that when the students get engaged in communicative tasks in which they have to communicate each another to fullfill communicative goals they increase their oral interaction progressively. Finally, it is worth to say that this research was also a way to show the school that students’ interaction in class is possible to enhance rove it by working with task-based learning.