The purpose of this research was to develop an enterprise business risks scale for hot-spring hotel industries and to identify this scale with high qualitative content validity and homogeneity reliability by Aiken's two quantitative methods for computing content validity coefficient and homogeneity reliability coefficient. Questionnaire survey method was used to collect data from 12 experts used a five point Likert scale to judge the importance of each item in this research. The results of this study indicated that content validity coefficient (V value) for each item ranged from .71 to .98 and the whole scale was .864; meanwhile, homogeneity reliability coefficient (H value) ranged from .57 to .93 and the whole scale was .787. A high coefficient value with significant level indicated that the whole scale or each item had high content validity and homogeneity reliability. Accordingly, this scale was used to be a valid and reliable measurement instrument.