Purpose: The study aims at analyzing the arm and leg movement in take-off phase to male and female pole-vaulters’ achievement. Hopefully this will provide reference in training for coaches and athletes. Method: Two cameras (Sony) with speed of 60 frames per second were used to film the male and female pole vault final of International Track and Field Invitation Match in 2005. This study used Dempster’s (1995) 14-segment and 21-point body model and Kwon 3D movement analysis device to do two dimensional analyze on athletes’ best performance. Also, the relationship between score and parameter was discussed by using Pearson’s product-moment correlation method. Results and conclusions: 1. Both male and female pole-vaulters don’t completely stretch their shoulder joints upward when they take off, which causes the angle of their shoulder joints too small. 2. For the male pole-vaulters, the right hand vertical speed is apparently related to their grades. That means the faster speed of pushing poles is advantageous to take-off. 3. For male and female athletes, the horizontal speed loses a lot in the early buffering period of holding phase because of the larger braking power. 4. For male and female pole-vaulters, the angle of torso has an inverse ratio to their grades. It shows that when pole-vaulters take off from the ground, the smaller angles of their torsos will benefit their performance in takeoff. 5. For male and female athletes, the angles of their hip joints are 47.08° and 53.53°, so the hip joints have smaller stretching movement during holding phase. Suggestions: To reinforce the stretch of shoulder joint, to increase the right hand pushing speed as well as to decrease the body angle while taking off will be advantageous to achievement.