在汉语作为第二语言的教学过程中,语音教学是非常关键的一环,其中声调又是大多数汉语学习者的最大障碍。本文使用听辨测试的方法,从学生感知的角度研究蒙古留学生的声调偏误,从母语的负迁移、目的语干扰、教材、教师这几个方面进行分析。同时本文就如何改进声调教学的效果提出自己的一些观点,以期有助于教学实践。 In the process of teaching Chinese as a second language, phonetic teaching is a crucial part, of which tone is the biggest obstacle for most Chinese learners. In this paper, we use the method of listening test to study the tone errors of Mongolian students from the perspective of students' perceptions, and analyze from the aspects of negative transfer of mother tongue, interference of target language, teaching materials and teachers. At the same time, this article puts forward some opinions on how to improve the effect of tonal teaching, in order to help teaching practice.