In the previous study, we examined the effects of comprehensive respiratory function exercise on exercise tolerance in patients with PAH. The results indicated that limb exercise combined with breath regulating guidance affects patients' physical health.Given these TCM principles, the current study investigated the clinical utility of Wuqinxi for improving patients' exercise tolerance and quality of life by comparing the intervention and control groups' NT-pro BNP scores, 6MWD data, negative emotionsand quality of life indices.