This study aimed to determine the effect of kinesiology taping on thoracic kyphosis and pelvic tilt angle in males with rounded shoulder postures. Thirty men in their 20s with round shoulder syndrome were randomly assigned to the experimental and control group. All subjects were measured for parameters such as height from the table to the back of the shoulder acromion in a straight posture (supine), an angle of thoracic kyphosis, and pelvic tilt before starting the experiment and rested for a half hour. The experimental group applied kinesiology taping while resting, while the control group did not take any intervention. After half an hour, the above parameters were measured again to compare the changes between the control and experimental group. The experimental group showed significant changes in round shoulder posture (RSP), thoracic kyphosis (TK), and pelvic tilt angle (PTA). There were no significant changes in RSP, TK, or PTA in the control group. While comparing both groups, the experimental group showed significant differences in RSP, TK, and PTA compared to the control group. Our results indicate that kinesiology taping is effective in RSP, TK, and PTA for subjects with rounded shoulder posture.