性别词是汉语表达性别概念的重要依托。“男/女”是一对典型的性别词,但是它们在成词的过程中多数都符合对称规律,但是也有很多词汇形成了不对称现象。本文首先描写了“男”、“女”性别区别词构词的对称性及不对称性,进而描写了“美男”、“美女”的不对称性。 Gender word is an important support for the concept of gender in Chinese. Men and women are a pair of typical gender words, but most of them conform to the law of symmetry in the process of word formation, but many words form an asymmetry phenomenon. This paper first describes the symmetry and asymmetry of the word “”, “female ”, and then describes the asymmetry of “beauty ” and “beauty ”.