Abstract
The Corona Virus (Covid-19) has affected almost all aspects of life, including the mentoring English Foreign Language (EFL) teachers. Teaching practice has been increasingly emphasized as a vital part of preservice teacher training program. During the Covid-19, there were a number of initiatives to assist teachers in education program. Between these, online mentoring via social media platforms are rapidly emerging as a creative approach to assist preservice teacher with additional resources. The study aimed at exploring the effectiveness of online mentoring during the COVID-19 Pandemic. Data were 24 preservice teachers and 4 mentors participated in this study at the Faculty of Islamic Education and Teacher Training in Banten. Mixed method designs a survey method and interview conducted online. The study analysed the effect of online mentoring experience differences on preservice teachers of mentoring activities. This study also explained kinds of mentoring used during the Covid-19 pandemic. It can be concluded that online learning was effective because the conditions that required online study and the mentor-mentee talk as not as effective as in the normal mentoring. The results of the study have implications for mentors, preservice teacher, and administrators. Supports from institution and schools are needed for the success of online mentoring

Key words: Covid-19 pandemic, EFL teaching, online mentoring, preservice teacher