Abstract: The characteristics of the unstressed sounds in Songzi dialect are the shortening of the sound length and the change of the sound pitch. Its pitch keep the toneof the final pitch of the previous word. The unstressed syllable in Songzi dialect has only the pitch characteristic, but there remains the arch characteristicof the word previous to the unstressed sound. If the previous word has the rising and rising-falling tones, modified tones occur.

Key words: Songzi dialect, unstressed sound