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The aim of this study was to examine therelationship perceived autonomy-supportive behaviors of coaches onself-determined motivation and sport commitment of elitefemale players inHandball league. The research desing was a descriptive-correlational.For this pourpose statistical society of this research incloud 237 female players were selected equal to sample society. Perceived autonomy- supportive behaviors of coaches, self-determined motivation and sport commitment were assessed using the perceived autonomy support scale for exercise settings(PASSES), Sport Motivation Scale (SMS( and Sport Commitment Model Scale) scms) respectively. The validity and reliability of the questionnaires was measured and modified.Data were analyzed using multiple regression and Structural Equation Models (SEM) in significance level of P<0/05. The finding showed autonomy-supportive behaviors had significant positive correlation with intrinsic motivation, introjected regulation and indentified regulation. However, autonomy-supportive negative correlation amotivation.In addition, intrinsic motivation, introjected regulation and indentified regulation had significant positive correlation with sport commitment players.Multiple regression showed autonomy-supportive coaches was predictor factor for the intrinsic motivation, extrinsic motivation and sport commitment players.path analysis results offered support for the proposed model. Total mediation was supported in the case of intrinsic motivation, introjected regulation and indentified regulation in the relationship between autonomy-supportive coaches and sport commitment players. The findings underline the importance of perceived autonomy-supportive coaches in motivation and sport commitment players. The results provide support Self-determination Theory in elite players