The major biomechanical variables acting upon kick motion can be described as follows; reaction force and impulse force, joint force moment. The analysis of the above variables presents the following findings. 1. The maximal value to vertical reaction force was 1431.4±310.9N on the average. The value of instep and infront kick was much larger than that of inside kicks. The force to prevent body movement and to accelerate swing leg rotation accounts for this difference. The average impulse force of the vertical direction was 5720.4±1964N · S indicating the instep kick was mort significant than the other two kicks. This means that inside kick shows a small numerical value in vertical direction velocity change. 2. Dorsi flexion/plantar flexion moment in the right ankle joint from a kicking position in comparison with knee and hip joint, flexion/extension moment showed a form similar to a slow parable shape. The maximal flexion moment emerged when the right foot was off and the impact was in the range of 40-60%