Based on the theory of TPB (Ajzen, 1985), the purpose of this study is to develop a scale for behavioral intention investigation in sports tourism. The subjects were 250 visitors in the 2011 National Games. The results show that the scale has good convergent validity, discriminate validity, and composite reliability. Hence, the scale of behavioral intention in the 2011 National Games is a multi-factorial first order model with three factors, which are attitude, subjective norms, perceived behavioral control, and behavioral intention.