Objectives: To assess the effectiveness of different types of physical activities (e.g., weight-bearing exercises, resistance training, aerobic exercises) in preventing osteoporosis in postmenopausal women. Methods: A comprehensive computerized search of pertinent databases was conducted in order to find studies that satisfied the inclusion requirements. To find pertinent information, a thorough search of PubMed, SCOPUS, Science Direct, and Web of Science was conducted. Results: Our data included seven trials with 30,728 women. Each study included a different exercise program, such as walking impulse, general regular exercise, aerobic exercise, and multipurpose exercise. Frequent regular exercise for a longer duration (>1 h) had considerably stronger preventative benefits for postmenopausal osteoporosis. The multifunctional exercise regimen described here had a positive impact on specific musculoskeletal, BMD, body composition, and cardiometabolic endpoints. After a meal, 45 minutes of suprathreshold speed-enhanced accelerated walking on level ground can prevent or mitigate postmenopausal osteoporosis in stationary women. Hormone replacement therapy and aerobic exercise can raise vertebral bone mineral density. Conclusion: For postmenopausal women, physical activity is a crucial non-pharmacological intervention in preventing osteoporosis. Personalized exercise prescriptions are necessary, nevertheless, as evidenced by the variation in the efficacy of various exercise regimens. Subsequent studies have to persist in refining our comprehension of the ideal workout plans for averting osteoporosis and tackling the obstacles associated with consistency and durability.