Euphemism expression forms can be different between dialects in different areas. The aim of this article is trying to make an analysis about euphemisms (including taboo words) . Through the study of euphemisms, we can understand more cultural features that we don’t know in concealing dialect lexicons. Then we can have a better view of what euphemisms’ cultural meanings are, and what their historical changing in culture is about. There are four concerning parts in this papeic The first is to describe the generation and backgrounds of the euphemisms. The second is to analyze the euphemisms from rhetoric aspects. The third is to state the relations between euphemisms and taboo words. And, the fourth is to make impressions for a conclusion.