This paper presents a conceptual framework for assessing language teachers’ attitudes and decisions to adopt mixed reality (MR) technology in teaching a new language to high-school students in Australia. A research model grounded in the Human-Organization-Technology (HOT) model and Self Determination Theory (SDT) is proposed. This research study will involve an online questionnaire survey for data collection. The outcomes of this study will support schools, teachers and students in gaining insights into the use of MR technology for supporting learning and teaching. On the theoretical side, this study will focus on the implications of adopting MR technology, and the identification of the main factors affecting teachers’ decision to adopt MR technology. On the practical side, this study will provide insight for teachers, school principals and education providers to develop appropriate strategies for addressing key concerns and make sound decisions in adopting MR technology for effective learning and teaching.