Well-being personality is an important personality trait that affects the sense of individual well-being. Based on the hypothesis of personality lexicology, the present study selected 225 items out of the initial personality vocabulary list adopted by previous literature to explore the structure and connotation of Chinese well-being personality. Through exploratory factor analysis and confirmatory factor analysis, 49 significant items were identified. The result of factor analysis revealed that well-being personality included three dimensions, i.e., courage-insight, virtue, and optimism. Results from adopting the Subjective Well-being Scale,Campbell’s Well-being Scale, and a brief version of the Chinese Big Five Personality Inventory as criteria, showed that scores in each dimension significantly predicted well-being.