Hap Ki Do is a Korean art of self-defense.
As in any Martial Art, Hap Ki Do structure has more than 270 major techniques, with the possibility of more than 10,000 variables. The addition of 3,864 attack and defense techniques, to the multitude of counter attacks and combinations, make for endless flexibility.

It is this unique advantage of Hap Ki Do that makes it so interesting and peculiar. Some may wonder how one can learn and master 10,000 techniques. It is not so difficult as it may appear.

Each category is divided into offensive and defensive techniques an each of these have joint locking and striking techniques. Within the joint locking techniques are included twisting, throwing, paralyzing, and strangling techniques.

Once the fundamental techniques have been mastered, it is quite easy to learn and perform the many variations. The fundamental techniques of Hap Ki Do are classified as follows: empty hand against empty hand, empty hand against a weapon, and weapon against weapon.

Within the striking techniques are included kicking, punching, hitting,cutting, and stabbing. The techniques with weapons include dagger holding, dagger throwing, sword, log knife, club, cane, pole, stone holding, and stone throwing techniques. In using various weapons for either offense or defense, there are various position techniques, standing, sitting, and lying down.