China's Qigong is a treasure of chinese heritage. It is not superstition, but a few people with ulterior motives put a mysterious veil on it and distort it at will. The research data of modern science and technology on Qigong has continuously proved that Qigong health preservation is a knowledge with very rich contents, with five-bird play, Taiji biography, Yijinjing and Baguazhang each having its own characteristics. Some take exercise as the main purpose, so that the joints, bones and muscles of all parts of the human body can be fully exercised, so that the pulse condition is smooth, the qi and blood are harmonious, and the functions of various systems are active. Some give priority to quietness, actively exercise the mind, qi and shape, and emphasize self-physical and mental exercise to give full play to their health care and disease-resistant functions. It is said that some American medical scientists will organize childhood men and women and old men and women to play Tai Ji Chuan for a long time as physical exercise. A few years later, the results showed that children were not short of calcium, had high physical fitness and were not prone to bone diseases. The elderly are not easy to suffer from femoral head necrosis, and the bone stress increases after wrestling, so it is not easy to fracture. Their conclusion is that it is not the patent of middle-aged and elderly people to take physical exercise by playing Tai Ji Chuan to achieve the purpose of health preservation and treatment, but it is also effective for children in their growth and development period.