Abstract. Mental skills are considered one of the major components of performance in high levels of athletic competition. On the other hand, athletes of every sport for improving and achieving their peak performance need different incentive and mental skill factors. However with regard that the wrestling is a combat sport and the psychological preparation has of special importance and with possible differences in mental states in various weight classes, the purpose of this study was to compare the mental skills profile in different weight classes in wrestlers. Method of study was comparative-causative. 240 wrestlers witlr age range of 18.5 * 0.839 years in the form of 32 teams participating in the Youth Chanrpionship in Iran (2010) rvere selected as Statistical sample. To gather information about wrestlers nrental skills South Australian Sports Institute (SASI) questionnaire was used. Wrestlers according to their weight classes categorized in one of these classes, lightweight, middleweight and heavyweight. Data analysis was done by using analysis of variance (ANOVA).The Results of the study showed no significant differences in any of mental skills (motivation, concentration, self-confidence , control mental state, mental imagery and goalsetting) among the three weigh classes; lightweight, middleweight and heavyweight. Previous research have compared mental skills between athletes of different sports and different levels of skills and with regard that the wrestlers in this study all were elite athletes and participated in many of tournament in national and international level. Therefore, it expected that they may have equal psychological feafure. However, coaches should always keep individual differences in mind when working with individual athletes, although these slight changes in individual differences can make a big change in success.

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