The purpose of this research was Abstractto analysis different background of basketball referees stress sources. This study used ”basketball referees sources of stress scale” as study instrument. Descriptive statistics, one-way MNOVA were adopted for data analysis. This study also used ”basketball referees sources of stress interview questionnaire” as study instrument. We used crosschecking of qualitative research for the reliability test of the data. Results were as follows: In ”making a wrong call” were main stress sources. In ”emotional fans”, ”influence day time work”, ”traffic”, ”food”, ”language”, ”class of game”, ”feel sick”, ”snatch the whistle” were the main stress sources. Younger, lower rank, less experience referees had significantly different stress than older, higher rank and experienced referees. Referees recognized that male referees and male coaches had discrimination to female referees, and thought that female referees are unable to handle fierce game.