本文用声学语音学的理论和方法对蒙古语标准音元音进行了系统的定量、定性分析。如对词首音节圆唇后元音的舌位高低排列、非词首音节短元音的数量和音值、词末（或闭音节末）弱短元音、词首和非词首音节长元音的音色差别、音长对元音音色的影响以及复合元音的特点等问题提出了自己的新见解。 In this paper, the phonetic phonetics theory and method of Mongolian standard pronunciation vowel conducted a systematic quantitative and qualitative analysis. For example, the vowel positions of the vowels after the round of the initial syllable are arranged in the same order, the number and the value of the short vowels of the non-initial syllable, the weak short vowels at the end of the word (or the end of the closed syllable), the initials and non-initial syllables The difference between the tone of tone, the effect of tone length on the tone of vowel and the characteristic of compound vowel.