Chengyu, or Chinese idioms are a unique type of expressions in Chinese, most of which consist of four characters. Even though they are highly compact with fixed structures, they often represent profound meanings vividly. Chengyu are mostly derived from ancient Chinese literature and are often linked with certain myths, legends and historical events. If not knowing where a chengyu originates from, one will find it difficult to understand its actual meaning. Therefore, learning chengyu can help people better understand traditional Chinese culture. Chengyu are widely used in daily conversations and literature works. Proper use of them can make a person’s language more expressive and communicate more effectively.