Background: This article is based on a common understanding of the concept of creative activities as intervention, as described in occupational therapy literature. Historically, creative activities have been used as intervention in occupational therapy. There is, however, a lack of clarity in descriptions of the concept. Aims/Objectives: To investigate and clarify the concept of creative activities as intervention (CaI) and to validate the findings in occupational therapy practice. Material and methods: A selection of articles according to PRISMA resulted in 15 articles, analysed with concept analysis. The results were validated by a reference panel of seven occupational therapists using a questionnaire and data was analysed by descriptive statistics. Results: Five attributes defined CaI: (1) Often consisting of elements of art and craft using mind and body, (2) Being experienced as meaningful, (3) Creating creative processes, (4) Developing skills, enhancing occupational performance and managing everyday life, and (5) Being easy to modify individually or in groups with different approaches. Three cases were generated from the attributes to illustrate the integrity of the analysis. Conclusions and significance: The results led to a description of CaI that could facilitate future research communication and common definition in occupational therapy practice.