In order to evaluate the appearance quality of cooked rice accurately，the appearance eigenvalues of cooked rice was measured by image processing technology, the correlativity between eigenvalues and sensory evaluation was investigated. The results showed that the difference in variety of indica rice was bigger than japonica rice,and the subjectivity existed by sensory evaluation. There was a good correlation between test indicators based on image processing technology and sensory evaluation of cooked rice. The regression equations and the regression coefficients which were built by various sensory evaluation indices(as dependent variables) reached significant level, and the predicted results were consistent with the results from sensory evaluation, the fitting degree between predicted value and sensory score was high up to 97.6%. So appearance sensory evaluation can be replaced partly by image processing technique to evaluate the appearance of cooked rice accurately.