Objective To explore the intervention effect of mindfulness training on athletes’ performance using meta-analysis method. Methods A total of 11 articles and 23 effect sizes were included through retrieval of Chinese and English databases, with a total sample size of 582. Result Mindfulness training improves the level of mindfulness [SMD =1.08, 95%CI (0.30, 1.86), p < 0.01], fluency (The optimal...