This study aims to develop a self-report inventory to measure University students’ perception of their creative thinking skills. Creative thinking is a critical learning outcome in higher education and one of the essential 21st Century Competency. The data were collected from 253 students of a university in Hong Kong. A structural equation model was applied to confirm the construct validity of the instrument. The result shows that the key characteristics of creative thinking skills are empirically constructed by creative character, originality, sensitivity, synthesizing and resistance to premature closure. The five characteristics of creative thinking can be considered as learning processes or outcomes to inform the design of instructional events and learning activities to nurture students’ creative thinking skills. Copyright © 2023 by the authors.