With the theme "Ontogeny, Urbanization and Multimodality in Language Community", this symposium focuses on the exploration of changes and evolution within Taiwan's language community influenced by individual development, urbanization, and multimodal communication practice. A series of various topics will be invited to discussions, such as language teacher education and pedagogy, oral and literary acquisition, phonetics and phonology of Taiwanese languages, morphology and syntax of Taiwanese languages, Taiwanese language loss, maintenance and revitalization, language contact, mixing, and evolution, Taiwanese languages and folk culture, linguistic ecology and sustainability, language policy and planning, language, and digital technology. We look forward to establishing a platform for sustainable multilingual coexistence and practice while further promoting local innovation in Taiwanese and international language academic research.