He was the second student of Ji Han Jae's school in Ma Jang Dong, Seoul.
One of the earliest important pioneers of the art, Myung Kwang-sik first began teaching hapkido at the Northern Branch of the Korea Hapkido Association in Seoul while attending Sung Kyun Kwan University as a Commerce Major.
The Korea Hapkido Association sent 15 members of demonstration teams to Vietnam and taught Korean, US, and Vietnamese troops as well as Special Forces.
Upon returning to Seoul Myung opened up a school in the Sansunkyo district and established the Korea Hapkido Yon Moo Kwan Association in April 1968, dedicated to the furtherance of Hapkido as a highly visible martial art.
Myung later moved his headquarters to Los Angeles and established the World Hapkido Federation.