Nurses frequently face stressful situations during work, which makes resilience an essential quality of their personality to cope with professional stress and to prevent burnout. Resilience can be improved by training and practice. To analyze the effect of resilience training in nurses, studies reporting the changes in resilience before and after resilience training were identified by conducting the literature search in electronic databases. Meta-analyses of standardized mean differences (SMDs) between postintervention and preintervention scores of resilience and other related variables were performed. Thirteen studies (576 nurse participants) were included. Resilience training improved the resilience scores of the participants (SMD, 0.58; 95% confidence interval [CI], 0.23-0.94; P = .001), whereas there was no improvement in the resilience scores of nurses who did not participate in resilience training (SMD, −0.13; 95% CI, −0.54 to 0.27; P = .523). The stress (SMD, −0.60; 95% CI, −0.80 to −0.40; P < .00001), anxiety (SMD, −0.50; 95% CI, −0.80 to −0.20; P = .001), depression (SMD, −0.43; 95% CI, −0.67 to −0.19; P < .0001), and burnout (SMD, −1.01; 95% CI, −1.25 to −0.76; P << .0001) scores of the participants were also decreased after resilience training. In conclusion, resilience training improved the resilience scores of nurses, which was also associated with improvements in stress, depression, anxiety, and burnout scores. However, because of the variations in training contents and measuring tools, only generalized assessments could be made.