In this experiment, 25 Chinese japonica rice varieties were evaluated by a panel of 25 tasters from China and Japan. Based on the results of this experiment, the preference of each taster was determined by using the correlation coefficient between the comprehensive evaluation of each taster and the overall assessment of all tasters. The ability to discern differences among the rice varieties was assessed by using the F-value from the ANOVA to determine whether the variances between varieties were significant. The reevaluated results showed an insignificant correlation of 0.347 between preference and discrimination ability. After the screening, the Chinese taster’s complex regression coefficient rose from 0.862 to 0.925, and the coefficient of determination increased from 0.743 to 0.856.