In order to evaluate the real facts the detective made a challenge to examine the impact of six weeks game specific field training with mental practice strategy of physiological, psychological and skill performance variables of football players. Their aged of the subject ranged from 14 to 17 years selected from Ragavendra Vidyalaya Matriculation School, Coimbatore. Selected subjects was randomly assigned to two equal groups (n=20), group I underwent game specific field training with mental practice (GSMP) and group II acted as control group (CG). The game specific field training with mental practice was given to the experimental group for 3days per week for the period of 8 weeks. The control group did not practice in any training except their routine work. The following variables were measured with standard test items: Vo2 max, self confidence and kicking. Pre and post test was conducted on separate days with warm up. The vo2 max measured by cooper vo2 max test in ml/kg, self-confidence was measured by questionnaire in points and kicking was measured by warner soccer skill test in meters. To find out the individual effect ‘t’ test was applied at 0.05level of significant. Further, the findings confirmed the game specific field training with mental practice is suitable protocol to bring out the desirable changes over the vital capacity and resting heart rate of school boys.