Sin Moo Hapkido is a martial art that combines "hard" and "soft" techniques. It is closely related to its parent art, Hapkido. 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.

The Art Sin Moo Hapkido incorporates a philosophy of non-violence, self improvement, adaptability, and physical, emotional and spiritual balance, with the basic Hapkido training. Additionally, Sin Moo Hapkido formalizes a series of techniques, although at advanced levels students are expected to synthesize their own work. The use of energy flows are also emphasized in Sin Moo Hapkido.


Sin Moo Hapkido uses holds, joint locks, throws, re-direction, kicks, punches, blocks, pressure points, weapons, and energy flow techniques.

Holds and Joint Locks

Holds and joint locks are used primarily for control of an aggressor. They are primarily defensive, but at more advanced levels can be interpreted as attacks. At the 4th dan black belt there is also taught 30 special attack techniques using variations and combinations of basic locks.

Throws, Re-direction and Blocks

Throws and re-direction of an aggressor's energy use an attacker's momentum to continue their own motion using the circular motion principle (Won) of Hapkido. These techniques depend on the incoming energy of the attack to determine their outcome; a soft or weak attack will require a small or soft re-direction. A large or powerful attack will result in a re-direction or throw that involves much more energy, translating to a more devastating outcome upon the attacker. The blocks used in Sin Moo Hapkido are usually also re-direction blocks, but some blocks are intended to be used to stop an aggressor's attack and because of this some blocks are hard blocks. Also legs are used for blocking.

Kicks and Punches

Sin Moo Hapkido uses a wide variety of strikes. Sin Moo Hapkido incorporates 25 defensive kicks that are useful in "street style" defensive situations that counter incoming attacks – out of the 25 two are specially only used to block kicks, but some of the other kicks can be used the same way also. Many of the kicks are designed for use in restricted spaces like hallways or crowds. After learning the basic 25 the student then learns 7 spin kicks, followed by many special kicks. Special kicks are harder to master but they need more room to be used, and they include doublekicks, flyingkicks, from the ground done kicks, jumpingkicks and combination kicks. Sin Moo Hapkido has numerous striking techniques.

Pressure Points and Energy Flow

Pressure points are used in Hapkido to control the physical body, and to manipulate the body's Ki to stop, disarm and disable an attacker or heal a patient. Sin Moo Hapkido uses 25 pressure points out of the body's over 600 pressure points. The pressure points are also referred to as vital points. Sin Moo Hapkido has a special side called Revival Techniques, which specializes on pressure point fighting and eastern medicine.


Sin Moo Hapkido weapon training consist the use of short stick (Dan Bong), walking stick (Dan Jang / Ji Pang e), long stick (Jang Bong), the sword (Kum), rope (Po Bak), knife (Kal), thrown weapons and adapting everyday objects to use as weapons. Weapon training is learned in the black belt stages, but knife techniques and defences against them are learned at Brown Belt.


Sin Moo Hapkido's ranking system is somewhat similar to other ranking systems. Gups (?, called also kups) are beginner student stages and dans (?) are advanced student stages. Practitioners are referred as Wong Sang. Though Sin Moo Hapkido has had a number of different revisions as far as rank structure, this is the current organization used by Ji, Han Jae.

Belt Ranks (before black belt):

  • White Belt
  • Green Belt
  • Blue Belt
  • Red Belt
  • Brown Belt

Black Belts:

  • 1st Dan: Black Belt
  • 2nd Dan: Assistant
  • 3rd Dan: Assistant Instructor
  • 4th Dan: Instructor
  • 5th Dan: Head Instructor
  • 6th Dan: Master
  • 7th Dan: Head Master
  • 8th Dan: Junior Grandmaster
  • 9th Dan: Grandmaster
  • 10th Dan: Senior Grandmaster
  • Dojunim: Ji, Han Jae


There are many variations when it comes to uniform in Sinmoo Hapkido as there was no official uniform for many years. Most European schools used white uniforms with black trim, and most American schools used plain white judo uniforms for the first 15 years or so.

The current official uniform is a grey colored dobak often with ties at the bottoms (for leg weights), though many people chose to leave the legs open. There is a World Sinmoo Hapkido logo on the left lapel and an oval shaped Sinmoo Hapkido logo on the back.


Sin Moo Hapkido has many meditation techniques. The Korean word for meditation is mun yum. Sin Moo Hapkido has also breathing techniques which are referred in Sin Moo Hapkido as Danjon (Tanjun, Tanjon, Danjun). Sin Moo Hapkido classes usually start with danjon breathing and end with meditation.

Nine basic rules

Sin Moo Hapkido's basic rules are categorized into three groups to make a total of 9 rules. These rules will help the Sin Moo Hapkido practitioner to have a better and healthier life.


  • 1st Proper Diet
  • 2nd Healthy sexual behavior
  • 3rd Beneficial Meditation


  • 4th Do not be Angry
  • 5th Do not be Sad
  • 6th Do not be Greedy


  • 7th Water Control
  • 8th Air Control
  • 9th Sunshine Control

Basic Techniques to Attain Green Belt

  • 25 Basic Kicks
  • Basic Escapes
  • Basic 8 Hand Techniques
  • Clothing Grab Defense

Basic Techniques to Attain Blue Belt

  • Spin Kicks
  • Punch Defense
  • Cross Hand Wrist Techniques
  • Behind and Body Grab Defense

Basic Techniques to Attain Red Belt

  • Kicking Styles
  • Kick Defense
  • Cross Hand on Top Wrist Techniques
  • Choke Defense

Basic Techniques to Attain Brown Belt

  • Kicking Styles
  • Knife Defense
  • Side by Side Wrist Technqiues
  • Sit Down/Lie Down Techniques

Basic Techniques to Attain Black Belt

  • Special Kicking
  • Throw Defense
  • Basic Yudo Style Throws
  • Advanced 8 Wrist Techniques