Objectives : This study investigated the influences of emotional intelligence, self-leadership, and job embeddedness on the work performance of clinical nurses. Methods : A survey was conducted with 258 hospital nurses. Data were analyzed using descriptive statistics, t-tests, ANOVA, Pearson correlation coefficients, and multiple regression with SPSS/WIN 23.0. Results : The mean scores were $4.64{\pm}0.6$ for emotional intelligence, $3.41{\pm}0.42$ for self-leadership, $3.11{\pm}0.52$ for job embeddedness, and $3.49{\pm}0.51$ for nursing work performance respectively. Nursing work performance was positively correlated with emotional intelligence, self-leadership, and job embeddedness. Multiple regression analysis showed that the factors affecting nursing work performance were self-expectation, fit, understanding of self-emotion, links, self-compensation, and age. Conclusions : The results indicate that self-expectation, fit, and understanding of self-emotion are very important factors in nursing work performance. Therefore, nurse managers should enhance nurses self-expectation, fit, and understanding of self-emotion by developing various emotional sensitivity and support programs.