First, the "Qi" in China's Kung Fu is seen from the boxing proverb "If you practice one breath inside, you can practice your skin at the same place". In the traditional theory of kung fu training, both internal and external training are required. Changquan pays attention to eight methods, that is, "hand-eye body movement and mental strength", Nanquan pays attention to "inner mind training, outer hand-eye body waist horse training" and Bagua Palm pays attention to "outer hand-eye body movement and inner mind training", which all reflect the idea of combining external training with internal training. External training is physical training, that is, the "shape" composed of external limbs and completed movements, which is an external performance. But what is more important is internal strength, that is, practicing qi. Kung fu exercises the spirit, which embodies the training of the internal organs. The technique of Changquan requires that "qi should sink", that is, qi should sink into the abdomen. Because of its complex structure, rapid fluctuation and great strength, Changquan has a great strength and a great demand for oxygen. If you are not good at mastering and using Shen Dantian's abdominal breathing method, it is easy to make qi and blood upwell and make the breath swim in your chest. When qi goes up, it will be empty inside, shortness of breath, lack of oxygen, lack of strength, dizziness, nausea, pale face, disorder and difficulty in lasting, and the balance of exercise will be destroyed. Therefore, when exercising, you must use abdominal breathing and be good at "storing gas", so that you can exercise for a long time and keep the balance of exercise. Nanquan pays attention to "filling the stomach with heavy breath" and "shouting". Sedimentation and strengthening the abdomen means that the buttocks converge, and the abdominal muscles participate in contraction, which is integrated with the "off-shoulder shoulder block" and "straight chest" to hold their breath and store strength. Paying attention to vocalization and yelling in Nanquan drill means that through reasonable vocalization, one can help boxing, that is, momentum; Second, help the Force; Third, help the image; Fourth, help to eliminate the residual gas in the body to reflect the characteristics of "strong body". Tai Ji Chuan pays attention to "broad chest and solid abdomen" and "showing abdomen". It adopts the traditional meridian theory, and the boxing posture adopts the spiral winding telescopic rotation method. It is required to take the waist as the axis, and the internal qi originates in Dantian, reaches the second pulse of Ren Du through winding movement, and is distributed all over the body, so as to achieve the situation of luck. One of the three diseases of Baguazhang is "holding your breath", which is easy to cause disharmony between qi and blood. The second most important thing in the "Ten Essentials" of Bagua Palm is to have "Qi", and Qi is breathing. "The abdomen is the root of qi, and qi is like a cloud." When the bagua palm moves, abdominal breathing must be used. The abdomen is like a cloud in the air. Adjust your breath slowly, and don't inhale or shout. All kinds of boxing put luck and action in a very important position, not only to make the action easier, but also to exercise the circulatory system and other internal organs through the respiratory system. Qi Jiguang wrote in Ji Xiao's new book that "every soldier should learn to run at ordinary times, so that he can run a mile at a time without panting", which means that he can "practice full strength", but in fact he practices "bones and muscles" and "qi". Strength is a unique thing in kungfu. The so-called strength, that is, under the guidance of people's ideology and the urging of qi, is a special strength shown by the contraction of human bones, levers and muscles, which is different from the "explosive force" in modern sports and also expresses the softness of western aerobics. Because of the strength, the techniques and moves of Wushu show a certain power, the characteristics of attack and defense can be displayed, and the consistency and variability of routines can be displayed. In Wang Zongyue's On Tai Ji Chuan, Li Jing is regarded as a prerequisite of "God", which shows the importance of Li Jing in Kung Fu. However, the generation of strength is inseparable from qi (essence, qi and spirit). Although the strength of Nanquan is divided into short strength, long strength, jumping strength and explosive force, in general, rigidity and strength are the common characteristics of Nanquan. The exertion of Nanquan emphasizes that there should be a process of holding one's breath and accumulating strength before exerting one's strength, so as to achieve internal tightness (consciousness) and external relaxation (muscle) through holding one's breath; By exhaling, we can use gas to push strength and improve the speed of force and explosive force. Xingyiquan pays attention to the connection of momentum, that is, every movement and every trend should run through it, so that the potential is broken. Inhale when you need to accumulate strength, exhale when you exert strength, and assist with gas to achieve the combination of gas and force. Baguazhang pays attention to the "Ten Essentials". First, it should be intentional, that is, we should use consciousness to guide actions, use mental activities to guide physical activities, and put consciousness into attack and defense, strength and intention of actions, so as to lead God with intention and combine God with strength, that is, the combination of intention, qi and strength. Octupole boxing pays attention to "relaxing shoulders and lowering qi". If you can't loosen your shoulders during exercise, it will be difficult for your qi to sink, which will cause your shoulders to shrink and your neck to float, which will limit the rapid movement of your upper limbs. At the same time, your center of gravity will rise, your foundation will be unstable, and your strength will be difficult to penetrate. Eight-pole boxing is often voiced by exhaling and urged by qi. When the feet shake, there is a "ha" sound to help. Shocking feet is an external force, and blowing is a unique luck method of octupole boxing. The two should be organically combined to reflect the unity of strength and internal and external integration. Shaolin Boxing compares thoughts to the heart, "courage comes from the heart", "the heart must follow the shape", "the heart is in harmony with ambition, ambition is in harmony with qi, and qi is in harmony with strength". Shaolin boxing spectrum says: "Method is boxing, strength is qi, practicing qi movements, calling it to send, qi to receive, strength comes from qi, transportation is more expensive than slow, qi is more expensive than urgency, qi is the first, and strength is the last." Usually use the voice to refuel and use the voice to urge. According to traditional aesthetics, beauty is inseparable from qi, which is the origin of beauty, and everything and people in the world are produced by the interaction of yin and yang. Life is also inseparable from "Qi", which is the origin of life. So beauty is in life, and life is beauty. Traditional aesthetic thought takes harmonious development as beauty and full expression of vitality as beauty. China's Kung Fu pays attention to the inner cultivation of Qi, from perfecting the "small universe" of human beings to recognizing and affirming the root and life of all things, which is closely related to China's classical aesthetics "theory of vitality". Boxers in all previous dynasties achieved "full vitality" by practicing Qi through internal strength, with high spirits, strong physique, quick movements and full strength, thus showing birth opportunity and fullness, which is an affirmation of human life activities and embodies the beauty of life. Kung fu pays attention to "practicing Qi", which includes not only the cultivation of vitality, but also the cultivation of human vitality and creativity. It attaches great importance to the foundation of human life. Qi is the source of vitality, and it is powerful.