Objective: To systematically evaluate the effects of KAATSU on the muscle morphology and function of the subjects, and to provide reference for the selection of compression training methods for different groups. Methods: use "KAATSU", "KAATSU Training", "Blood Flow Restriction Training","Occlusion Training", etc. as search terms in CNKI, Wanfang Medicine, Reading Show, Web of Science, Pub Med, Elsevier, etc. Retrieve relevant literature, supplemented by literature tracking method, obtain all randomized controlled experiments on blood flow restriction training, evaluate the quality of the literature and extract relevant data from the literature reflecting the effect of KAATSU training. After screening, 47 research papers (7 Chinese and 40 foreign languages) were included, including 40 high-quality literatures and 7 low-quality literatures. Meta-analysis was performed on the included literature using Revman5.3 software. The results showed that 1) KAATSU training can significantly improve the upper arm circumference and upper arm cross-sectional area, thigh circumference, thigh cross-sectional area, and quadriceps cross-sectional area of ordinary healthy people (P<0.05); The upper arm circumference, thigh circumference and the thigh circumference of the rehabilitation patients were significantly improved (P<0.05). 2) The effect of KAATSU training on the elbow flexion 1RM strength, bench press 1RM strength, knee flexion (extension) constant velocity moment, knee extension 1RM strength and other indicators in the general healthy population was significant (P<0.05); Elbow 1RM strength, bench press 1RM strength, knee flexion (extension) constant velocity moment, deep squat strength have obvious lifting effect (P<0.05); knee joint flexion (extension) constant velocity moment and knee extension 1RM for rehabilitation patients The effect of strength improvement is obvious (P<0.05). Research conclusion: KAATSU training can reduce the probability of sports injury, improve the muscle shape and function of the subject, and can be used as a supplement to traditional resistance training. It is suitable for rehabilitation patients to restore muscle fitness, and general healthy people to enhance muscle strength, athletes improve their athletic performance and other aspects. During the KAATSU training, the compression strength, training intensity and training period should be reasonably set according to the group characteristics of the subjects to ensure the safety during the exercise and achieve the expected results. [ABSTRACT FROM AUTHOR]