Researches revealed that critical thinking is a solely appraised learning outcome in higher education. However, the study related to students' perceptions of critical thinking in online learning is not greatly expanded. This study explored students' attitudes and beliefs of critical thinking within asynchronous learning environments. The participants of this study were English as a Foreign Language (EFL) students in one of the universities in Malang. To gain deep understanding, both quantitative and qualitative approach was applied. In obtaining the data, a set of questionnaires was distributed through google form and analyzed to describe the learners' perception. Besides, to draw supplementary information, a form of deep interviews with six students was conducted. The findings indicated that even though the analysis of the questionnaire showed students' positive attitudes toward critical thinking skills, however, from the interview section, it is showed that students' were lack of confidence. In addition, there was multifaced understanding what critical thinking are.