This study aimed to find out the challenges of online learning that EFL students faced during covid-19 pandemic. The method used in this study is phenomenological qualitative. This study consists of three research questions. There were 9 PBI students batch 2018 were interviewed with semi-structure interview. The results show that EFL students faced many challenges in conducting online learning during the Covid-19 pandemic. These challenges are caused by external and internal factors, challenges caused by external factors include internet access, learning facilities, and challenges caused by internal factors include motivation and time management. I also found that online learning has effects on students’ behavior, namely students become more capable in using technology, but also, they become more negligent and lazy in learning.