This study explores what Equity, Diversity, and Inclusion (EDI) means to Canadian STEM (Science, Technology, Engineering, Mathematics) librarianship and how librarians can incorporate EDI concepts in their professional practices. In recent years, increased attention has been paid to EDI in Canadian higher education, government funding agencies, and professional organizations (Canadian Institute of Chemistry, n.d.; CCDI Consulting, 2022; Engineers Canada, n.d.; Government of Canada, 2022; Universities Canada, 2019). Literature review shows no study has looked at this topic. Both investigators of the present study are Canadian academic librarians supporting STEM disciplines. They are considering the implications of EDI to their day-to-day work as well as their professional field – STEM librarianship. Hence, they see the need to carry out a study to find out what others in the field have been doing, thinking, and planning in line with the big undertaking. This project has been approved by the research ethics offices at both investigators’ institutions. Research data will be collected by an online survey and one-on-one semi-structured interviews in March and April and analyzed in May 2023. Study findings will help outline the current uptake of EDI by STEM librarians in Canadian post-secondary institutions and inform issues and best practices in this aspect. Findings will also benefit library administration in their decision-making in relevant administrative support and policies, as well as campus partners, such as STEM faculty members, who are interested in collaborating with librarians on EDI-informed teaching and research. The poster will be based on the study's preliminary data analysis.