To solve the multiple attribute decision-making problems effectively, for the scale transformation problem of the
two-tuple linguistic, a new compound scale is proposed deal with linguistic evaluation information, which combines the merit of both exponential scale and −n∼ n scale. An improved two-tuple linguistic representation model based on new linguistic evaluation scale is setup. Experiment results show that, the improved representation model can reduce the loss and distortion of information in aggregating, and improved the precision and reliability of the results effectively.