A systematic review and meta-analysis of eight studies involving 5754 nurses found a moderate negative correlation between organizational support and turnover intention (pooled correlation coefficient: -0.32, 95% CI: -0.42 to -0.21). All studies reported a negative correlation, ranging from -0.10 to -0.51. The results were stable after sensitivity analysis and showed no publication bias. Subgroup analysis indicated stronger negative correlations in studies from China and Australia compared to Europe. Organizational support was found to have a moderate negative effect on turnover intention, but data on its impact are limited. The study had limitations, including a small number of studies and potential selection bias. Future research should explore the independent effect of organizational support and consider mediating and moderating factors. Healthcare organizations should focus on improving organizational support to reduce turnover intention, as it is a key factor in nurse retention and overall healthcare quality.A systematic review and meta-analysis of eight studies involving 5754 nurses found a moderate negative correlation between organizational support and turnover intention (pooled correlation coefficient: -0.32, 95% CI: -0.42 to -0.21). All studies reported a negative correlation, ranging from -0.10 to -0.51. The results were stable after sensitivity analysis and showed no publication bias. Subgroup analysis indicated stronger negative correlations in studies from China and Australia compared to Europe. Organizational support was found to have a moderate negative effect on turnover intention, but data on its impact are limited. The study had limitations, including a small number of studies and potential selection bias. Future research should explore the independent effect of organizational support and consider mediating and moderating factors. Healthcare organizations should focus on improving organizational support to reduce turnover intention, as it is a key factor in nurse retention and overall healthcare quality.