Purpose: To explore the trunk movement and mechanical energy of the shot putting in eight male elite shot-putters. Methods: The films were digitized using Kwon 3D motion analysis software, and to calculate the trunk kinematics and power of the ball. And then, to compare the differences in two motion events and explored the correlation for all parameters and throwing distance. Results: There were founded the significant difference that the trunk angle and velocity between two events. The throwing distance were significant positive correlation with power of the ball, the trunk angle of the leading leg lift the floor was significant positive with ball away the hand, and the angle varying of the trunk was significant positive with trunk angular velocity of the ball away the hand. Conclusion: To increase the power during the release phase will assist the throwing distance.