The purpose of this study was to analyze biomechanical parameters between non trunk rotation hook and trunk rotation hook in boxing. Five elite boxers were participated in this study for the comparison. The 3D kinematic and EMG data were collected for between trunk rotation types. Conclusion were as following; In X and Y axis of COG, there is no signifiant. In Z axis of COG, type 2 was lower than type 1 in left hook motion. In rotation angular displacement of shoulder and hip, type 2 was more rotated than type 1 in hip rotation angle. In lower body joint angular displacement, type 2 was more flexed type 1 in ankle and knee joint during left hook motion and in hip joint during right hook motion. In upper body joint angular displacement, type 2 was more extended than type 1 in shoulder joint, type 2 was more flexed than type 1 in elbow for all event. In velocity and acceleration of hand, type 1 was faster than type 2. In EMG of rectus femoris, type 2 was bigger than type 1, but biceps brachii, erector spinae and gastrocnemius were no significant.