Abstract: Objective? To assess the effect of pulsed electromagnetic fields （PEMFs）on balance ability of postmenopausal women with osteoporosis. Methods? 43 eligible patients were randomly divided into experimental (n=24) and control (n=19) groups. Patients in both groups received conventional drug therapy. Meanwhile, patients in the experimental group were given PEMFs once a day for 30 days. Results? The Berg Balance Scale (BBS) scores increased and the timed upand to test (TUG) scores, sway index (forward-backward), rectangle area and sway path decreased in the patients in the experimental group (P<0.05). In the patients in the control group, only changes in BBS scores and sway path were statistically significant (P<0.05). The decrease of sway index (forward-backward) in the experimental group was greater than that of the control group (P<0.01). Conclusion? PEMFs can improve the balance ability of patients with post-menopausal osteoporosis.