The aim of this study is to investigate preschool teachers' perceptions of good practice in play, their skills, and perceptions of play competence. The theoretical framework is based on interactionist theories, which congregate theories of learning, in which individuals and the environment influence and are influenced by one another in a continuous interaction and communication, such as socio-cultural theories and ecological system theories. The study has a qualitative and quantitative approach. Interviews were conducted with preschool teachers (N = 30) to gain a deeper understanding of their perceptions of the concept of play competence. In addition, a survey was distributed to preschool teachers (N = 115) in order to gain a broader understanding of their perceptions of different dimensions of teacher play competence and to investigate if and how these perceptions were related to factors such as age, type of education, and number of years in the field. The results showed that preschool teachers describe play competence as a multidimensional construct, encompassing different competencies such as attentive, cognitive, and organizational. The results from the quantitative analyses showed that experienced teachers rate their play competence higher than teachers with limited experience of work in educational settinngs. Thus, this indicates that play competence develops during practical experience in the field.