This manuscript reports the trends and issues of mobile-learning in Taiwan. We selected 43 research papers published in mobile-learning field and analyzed the research content including methodology, applied subjects and utilized information technology instruments. We found that most of research focus on the design and development of mobile learning, and the research methodology mainly focuses on learning systemic development, and the subjects of researches the most are elementary school students. Finally, these researches of m-learning which combined learning system as the most informational technology instruments.