The paper classifies the variable vowel phonetic types included in Ewenki derivational suffixes into six kinds, and discusses the classification form and condition to each type.

• 本文根据鄂温克语派生词尾所包含的可变元音音位类型,分为六种类型,并具体讨论属于各种类型形态语音变化派生词尾的分类形式及条件。