The study investigated the variation in heart rate and oxygen consumption for taekwondo player in training performance. Ten male taekwondo players from Division Tin the university volunteered for the research. The experiment was performed and samples were collected for each player during the training and competition period. The average age of the subject was 18.5±0.5 yr and the height was 171.7±1.8 cm, and the weight was 62.8±0.7 kg. During experiment, each subject rode the machine until complete exhaustion at a speed of 15 mph and 5 mph that increased every two minutes. The wireless heart recorder (Polar) and the Vmax29 gas analyzer and the Daiichi analyzer were used to analyze the heart rate and oxygen consumption. According to the statistical analyses on the one-way ANOVA Repeated Scheffe and Pearson's relation, the result showed that: First, the taekwondo player of HRmax was significant with rest at the post-exercise 5th minute (65.0±4.1 vs. 195.3±2.8 bpm, p<.05). The taekwondo player who had the hearing rate post-exercise 60 minute max was significant 60 minute with rest (65.0±4.1 vs. 73.5±0.5 bpm, p<0.5). The taekwondo player of the VO2max was significant in the 5th minute (53.1±6.0 vs. 22.6±1.2 ml • kg-1min-1, p<.05). 2. The power output was 11.5±0.1 min. 3. There was significant at the PRO post-exercise to reach the peak, but it didn’t get steady in the post-exercise 60 mm. It's much relation between VO2max and POmax. The result showed the player did not recover very well cause research the rest period. It is important for the player recovery system. Oxygen consumption was not very well recovered sixty minutes after the exercise. The data can be used as reference for coaches and players. Understanding taekwondo player's physical condition is beneficial to coaches and players for training performance.