The purpose of this study was to determine the effect of sport drinks on lactate and heart rate during recovery phase. The subjects were twelve male students enrolled on the Department of Physical Education at I University. The subjects were given an explanation of all laboratory procedures before giving their informed consent. They were randomly assigned to either three experimental groups(P-dring, G-drink, A-dring) or control group(spring water, Placebo). After each drink, the subjects were taken a rest for 20minites, they performed the gradual increased Exercise test on treadmill by Bruce Program. Heart Rates were measured by heart checker system during pre-exercise and post-exercise after 0, 3, 5, 10, 20 minites, and lactate concentration was analyzed by lactate analyzer(YSL 2300L). The blood samples were obtained from Finger Tip Method. Analysis of variance was used to determine difference between the control group and the experimental groups by SAS Package. The results of the study were as follows : 1. The heart rate was not shown a significant difference among the groups after exercise. 2. After exercise, blood lactate concentration was shown a significant difference among the groups. 3. During recovery blood lactate concentration did not show the significant difference among sport drink groups but did show a significant difference between the experimental group and control group.