Through making a survey of Taiwan's information firms, this study explores partner selection determinants and performance of their strategic alliances. By applying factor analysis, cluster analysis, correlation analysis, and MANOVA/ANOVA, sixty-one information firms are empirically analyzed. Findings of this study indicate that: There are significant differences among information firms in their alliance motives and partner selection criteria; Alliance motives and partner selection criteria have significant influence on partner selection and alliance performance respectively Firm's perceived importance of industry's key success factors are significantly and positively correlated with the weighting of corresponding partner selection criteria.