This meta-analysis examines 15 out of 502 studies searched in major academic databases in Korea in order to analyze the factors affecting the happiness of professional dancers. The overall average effect size was 0.462, which was found to have a moderate or higher positive effect between dance-related variables and happiness. By variable, self-identity (0.561), immersion experience and performance (0.525) showed the highest effect size, followed by social relationship and support (0.445), goal orientation and motivation (0.359), psychological competency and positivity (0.331). In terms of gender, men (0.448) and women (0.458) showed moderate or higher effect sizes. This result suggests that dance is acting as an integrated medium that encompasses self-realization, psychological growth, and identity reinforcement beyond a simple job, and suggests the need for a systematic and multidimensional approach to improve the happiness of dancers.