Abstract: Chinese Tones are the relative pitch distinguishing meanings, usually becoming the difficulty in foreign language teaching. Facing up with the increasing number of Vietnam students in Yunnan Province, we take Chinese tones of Vietnam students as research objects, use the way of combination of recording and listening to analyze the acquisition error of Chinese tones quantitatively basing on the test, and then, put forward some countermeasures, in order to offer some helps for teaching tones of Vietnam students.