Li Zhaoshan, 1955, a native of Xixian county, Henan province, practiced martial arts, Shaolin boxing, Tai Ji Chuan and health qigong since childhood. He studied health piles and five major movement skills from Mr. Wang Anping, and then he studied Dacheng Boxing from Mr. Wang Xuanjie, a famous martial artist, and practiced Dacheng Boxing comprehensively and systematically. Following the teacher Mr. Wang Xuanjie's teaching of attaching importance to Wushu, keeping in good health scientifically, keeping fit and promoting Chinese Wushu, he has devoted himself to the research and teaching of Yu Dacheng's boxing theory, fighting technique and keeping in good health technique for many years. The "quick-acting" teaching method can make students have the initial ability of releasing people and self-defense through short-term intensive training; Based on sports biomechanics and other related disciplines, this paper deeply analyzes the theoretical system of Dacheng Boxing, puts forward the theory of "internal strength field", points out the three processes of "internal strength gathering and breaking hands in response to the situation", and holds that "bone reconstruction" and "muscle connection" are the necessity of seeking internal strength. Jason Wu magazine has published martial arts reportage such as Soul of Dacheng Boxing-A Record of Li Zhaoshan, a famous Dacheng Boxing Master, and Approaching Li Zhaoshan. China Education Television, Beijing, Henan, Shandong and other TV stations 13 once made a special report on Mr. Li Zhaoshan in the column "Fighting Challenge-People's Billboard". He has published more than 90 professional papers on Dacheng Boxing, and published monographs such as Exploring the Classic of Dacheng Boxing, Beginners' Introduction to Dacheng Boxing, True Biography of Dacheng Boxing, Breaking Hands, etc., as well as monographs such as Healthy Dancing of Dacheng Boxing, China Dacheng Boxing, Two Doors and Mixed Yuan Li of Dacheng Boxing, and Excellent Pusher Technology of Dacheng Boxing.