Sin Moo Hapkido is a martial art that combines "hard" and "soft" techniques. It is closely related to its parent art, Hapkido is a dynamic and eclectic Korean martial art. It is a form of self-defense that employs joint locks, techniques of other martial arts, as well as common unskilled attacks...

Sin means spiritual and Moo means martial, thereby Sin Moo Hapkido can be translated as, "A spiritual martial art." Sin Moo Hapkido was founded in the United Stated in 1984 by Ji, Han Jae (b. 1936). Ji, Han Jae was an early student (Dan #14) of Choi, Young Sool, the founder of Hapkiyusool, a forerunner of Hapkido.