This study dives deep into the evolution of research on teacher emotions (TE), teacher agency (TA) and their role within higher education institutions (HEIs) from 1975 to the present. Combining a meticulous bibliometric and content analysis, the paper has painted a detailed picture of how the academic conversation has developed over nearly half a century. The approach did not just count publications but looked at how they connected globally. The study reveals a rich tapestry of international collaborations, with the United States, Australia and China standing out as key players, showcasing the global interest in this field and its interconnected insights. Another fascinating finding is the uncovering of the multifaceted dimensions of research on TE and TA and the significance of regional and global perspectives in shaping the holistic landscape of the field. The emergent themes, such as 'Language Teacher Emotion' and the significant impact of 'COVID-19' on educational dynamics, are even more intriguing. These themes strongly indicate the field's evolution and responsiveness to the emerging challenges in the contemporary academic landscape.