The purpose of this study was to develop a Sport Friendship Quality Scale (SFQS). This study used Hsu & Lu (2001) qualitative results of sport friendship and combined with Weiss & Smith's (1999) Sport Friendship Quality Scale; (SFQS) and administered 319 junior student athletes (males = 169; females=150) with mean age of 14.4 (SD= ± 1). An exploratory factor analysis, item analysis, and Cronbach alpha methods were used to examine the validity and reliability of the scale. Results indicated that the Sport Friendship Quality Scale (SFQS) had 24 appropriate items with 7 subscales named "Self-Esteem Enhancement and Supportiveness," "Things and Interests in Common," "Conflict," "Resolution of Conflict," "Intimacy," "Emotional Support," and "Mutual Help and Guidance." Also, Cronbach alpha indicated that the 7 subscales with appropriate internal consistence; coefficients ranged from.53 to.71. In general, this study showed the newly developed Sport Friendship Quality Scale (SFQS) with acceptable validity and reliability. The authors suggested future research may apply SFQS to athletic settings and examined its relationship with sport motivation, sport enjoyment, and sportspersonship.