Abstract: This research, by conducting acoustic features analysis and perception experiments on 10 speakers’ speech material which contained two couples of Chinese homophones (“qu(4)shi(4)”(“interesting thing”or “dying out”) and “sheng(1)xue(2)” (“acousics” or “entering a higher school ”)), has found that it is the sentence prominence, other than the stress, that disambiquite the two couples of homophones. This result means that sentence prominence can disambiquite some Chinese homophones by emphysizing some syllables of these homophones

Key words: homophone, stress, sentence prominence, disambiquity