Frailty, a complex geriatric syndrome, can reduce the ability to resist stress and maintain homeostasis, having association with adverse outcomes such as falls, disability and death. Exercise intervention, as an efficacious, easy-to-implement, and low-cost anti-frailty approach, receives wide attention. Many trials in China and other countries have confirmed the effectiveness of different exercise types, but most of them have limitations. Therefore, we summarize and discuss those trials to provide ideas for designing and conducting more rigorous and effective trials and a theoretical basis for better exercise intervention prescriptions for frail elderly patients in clinical practice.