The aim of this research was to survey the relationship between the number of crowds with anxiety and the function of the soccer premier leagues referee. 45 Iranian soccer premier leagues referees demanded to take part voluntarily and they completed two questionnaires including Trait Anxiety (SCAT) and State Anxiety (CSAI-2) in three phases: the day before the game, before the game and after the game. Getting the number of crowds from the boss of the stadium and the supervisor of the matches,

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... in the end of each game, we took the evaluation paper of each referee from the matchs superintendent and registered the mark. The analysis of data showed that the number of crowds does not have a meaningful relation with small scales of State Anxiety before and after game, but about the function is a meaningful negative relation. Also, there was a meaningful negative relation between function and cognitive anxiety and there was a meaningful positive Anxiety with self-confidence before the game. However, the experience referees with State Anxiety before the game show a meaningful negative relation.