The use of Mobile-Assisted Language Learning (MALL) in teaching, especially in English as a Second Language (ESL) has become an emerging trend globally. In recent years, many educators have started to deliver lessons online using the concepts of MALL, including those in Malaysia, especially during pandemic COVID-19. Writing is an important skill in English language acquisition but the review of using MALL in teaching writing is scarce. Hence, this review focuses on teachers' perspectives and readiness toward the use of MALL in teaching writing among English as a Second Language (ESL) learners. Therefore, Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines was used to extract 30 articles from the year ranging 2018 to 2022. Two databases, Google Scholar and Educational Resources Information Centre (ERIC), were used to collate the articles for this review. The findings of this review exhibited the positive perspectives and readiness among the teachers towards the use of MALL. Parents' perspectives should be taken into consideration in future research. [For the full proceedings, see ED654100.]