Tai Ji Chuan is a set of body-building exercises based on China's traditional body-building martial arts theory, combined with Tai Ji Chuan's concepts of combination of excess and deficiency, balance of yin and yang in traditional Chinese medicine, meridian guidance and so on, through long-term research, exploration, practice and summary, so as to achieve the purpose of keeping fit. Free Tai Chi training courses jointly sponsored by Daily Business Health Club and Hangzhou Wushu Association have been held in Wulin Square and Wu Shan Square in Hangzhou. Every morning, hundreds of Tai Ji Chuan fans and citizens, under the personal leadership of teachers such as old boxers Zhu, Zhao and Zhu Xinggen, try to figure out one move after another and carefully understand it. Because this technique is easy to learn and rich in content, it can be practiced not only outdoors, but also in balconies and offices.