--- - |2 Abstract This study explores the relationship between critical thinking disposition and scientific creativity and examines the hypothesized mediating role played by creative self‐concept (trait‐like creative self‐efficacy). A large sample (N = 1,153) of Chinese high school students filled the Critical Thinking Disposition Inventory and revised trait‐like creative self‐efficacy scale, and then solved Scientific Creativity Test for Adolescent. Structural equation modeling has demonstrated that students’ critical thinking disposition was positively related to their creative self‐concept and scientific creativity, and creative self‐concept fully mediated the link between critical thinking disposition and scientific creativity. We discuss these findings in terms of the hypothetical role played by creative self‐concept for creative functioning. - The Journal of Creative Behavior, EarlyView.