This research aims to evaluate the effects of different cognitive training using imagery, general cognitive (CG) and specific cognitive (CS) (Paivio, 1985) to the achievement of service by the tekong in sepak takraw. The effects of imagery training with physical training towards achievement, imagery ability and exercise heart rate were also collected. The subjects consisted of 24 elite players sepak takraw (tekong) school level player that involved in Tunas Cemerlang program, aged 13 to 17 years old (M = 14.66, SD = 1.40). The subjects were divided into three groups, the test (CG & CS) and control (C) group with an exercise program to different imagery and physical training for eight weeks. Pre-test was conducted by testing the service performance appraisal based on the results of 25 landings repeated as in training, Miq-R questionnaire (Hall & Martin, 1997) and pulse rate immediately prior to the exercise of a service. ITP imagery training program adapted from Morris et at. (2005) was conducted using different imagery scripts for CG and CS groups and post-test was conducted at the end of the program. Independent samples t-test showed no significant difference when comparing the two test groups. Paired t-test and one-way ANOVA analysis showed that CG group significantly improved performance while not among C group. Analysis Miq-R and the average training heart rate is not significant for all subjects. The study has found that the imagery of CG and CS are not differed in terms of the effectiveness in improving achievement but both are suggested to be conducted in the training program to improve the service by the tekong.