The Four Abstract evaluates Bie Ya as“The food of elementary school and the raft of the artistic and literary circles”, which proves importance of Bie Ya in the scriptures and the exegesis. Because our predecessors had few attentions for Bie Ya and had few researches about it, many people know little about it, even people know little about its valuation. Whether it has problems, every book has its value of existence and advantage. Through the study and compared Bie Ya and Er Ya in the way of explaining, the content of interpretation, annotations, the application of dialect, we illustrate its feature of Bie Ya and its valuation in the history of Chinese literature, which includes its achievements and its deficiencies.