This is one of the short weapons used in the Yang style taiji quan. It is an application of the theory and principles to play sword routines, including pointing, cutting, upward swinging and piercing, as well as various body techniques and stances peculiar to Yang style boxing.

The originator of the Yang style tai ji boxing was Yang Luchan (1800-1873) from Yongnian in Hebei Province. Yang went to learn Taiji boxing from Chen Changxing in the Chenjia Valley as a boy. When grown up, he returned to his native town to teach the art. To suit the need of common people, Yang Luchan made some changes, and dropped some highly difficult moves, such as force irritating, broad jumps and foot thumping. His son shortened the routine which was further simplified by his grandson. The grandson's form of the Yang style taiji boxing was later taken as the protocol of the Yang style boxing. Because of its comfortable postures, simplicity and practicability, this form has become the most popular routine for exercise and practice.

The Yang style taiji boxing features agreeable movements and actions combining hardness, softness and naturalness. When practicing, practitioners should relax to form softness which transforms into hardness, thus combining the hard and the soft. The Yang style taiji quan is divided into three sub routines, namely high-posture, middle-posture and low-posture routines, all with comfortable and agreeable movements and actions. The beginners can adjust their physical power in practice depending on their age, sex and stamina. It can be use for curing illnesses, preserving health and improving the physiques and boxing skills.