With the development of teacher education, teacher agency has garnered more attention as a vital factor to achieve teachers' sustainable development in recent years. Based on Biblioshiny, this study attempts to quantify and map 753 articles on teacher agency collected in WOS Core Collection from 2003 to 2024. Specifically, annual scientific production, the contributions of sources, authors, countries and affiliations have been presented. Besides, research relationships and keywords on this topic have also been identified and analyzed to review the progress of this research field. Moreover, it is predicted that more subtopics will appear and teachers' digital competency related to their agency will particularly be a research frontier in the future.