The purpose of the present research is investigating in-service and pre-service music teachers' habits and purposes of using social media. Researchers created survey questions in order to define participants' habits, and they utilized some questions from the scale developed by Karal and Kokoc (2010) with their permission. Obtained findings were analysed through frequency analysis. In the scope of the present research, 160 music in-service or pre-service music teachers, who study or graduated from 26 different universities participated. According to the findings of the present research, the habits of in-service and pre-service music teachers are as follows; they spend an important amount of their online time on the social media, they think they spare enough time to social media, they don't follow music and video contents, but they use video and music in the contents they share. Additionally, their purposes of using social media are; communicating with their friends, following educational groups and activities, sharing the content they like, and finding various information and ideas.