The heavy sword is the original name of the broadsword. It is a traditional weapon in the Beijing-Tianjin area and has a history of thousands of years in my country. Tianjin Hui broadsword became famous in the early years of Emperor Chengzu of the Ming Dynasty. It is said that a Jinling Hui general of Yan Wang Zhu Di used to fight with a 60-jin broadsword. He followed Zhu Di to the north to pacify Tianjin, and then moved his family to Tianjin, so there was the Tianjin Cao family broadsword, which was passed down from generation to generation. In modern times, the broadsword of the inheritor Imam Cao Jinzao has increased to 160 jin and become a fitness equipment. Cao Jinzao also integrated the long fist, pile skills, and free-hand of the "Northern Shaolin" with "Western boxing", "secret sect art" and ancestral "ten-hand boxing", and created the "72-style chain boxing", which combines southern boxing, northern leg, wrestling, and grappling. The three moves of "green bull sweeping the tail", "hidden dragon coming out of the abyss" and "ghost push and turn" are the most distinctive. Cao Jinzao was a master of martial arts and a chivalrous man. He and Huo Yuanjia were called the "Han-Hui Twin Heroes". Cao Jinzao's son Cao Keming inherited his father's business and created the "Cao Sect Sword Style" based on his own martial arts skills such as sword, stone, rock holding, and fist shovel. With the purpose of "promoting martial arts, strengthening the body and loving the country", he established the first Hui martial arts school in Tianjin, the "Hui Sword Fancy Weightlifting Team". It has now been passed down to the brothers Cao Shiwei and Cao Shijie, and the inheritance method has also changed from "family inheritance" to open teaching. Since the Tang Dynasty, the 160-jin heavy sword has been the main weapon in the martial arts champion examination. The Cao Sect Sword Style absorbed the skills of bows, swords, stones, horse-riding arrows and other subjects in the previous martial arts examinations, and incorporated the skills of stone, stone locks, rock holding and other skills into the sword moves. The main styles of Caomen heavy sword include inserting, back, twisting, cloud, piecing, water grinding, waist string, lion covered with red, oolong swinging tail, snowflakes covering the top, lotus leaf swinging, palm flower, stacked arhats, etc. The characteristics are the combination of hardness and softness, the combination of movement and stillness, and the integration of strength and skills. The big sword dances, moving like the wind, still like a pine, the sword is heavy, the sword dance is light, the sword flies with the ring of steel, and the sword falls silently, which is both thrilling and powerful, and light and agile, giving people great aesthetic enjoyment. The Caomen sword style aims to promote the spirit of national martial arts, strengthen national unity, and practice martial arts for fitness, and has been widely praised by people from all walks of life at home and abroad. At present, this important martial art has encountered problems such as insufficient funds and lack of venues in its development, which need to be solved urgently.