徐铉本《说文解字》和徐锴《说文繋传》中都曾援引李阳冰刊改《说文解字》的观点。前贤时或论及二者差别,但并未全面分析二者援引李阳冰观点的异同。本文在比较异同的基础上得出:二者对李氏观点的基本立场一致,即驳斥阳冰。但二者对其观点的具体处理有差异,徐锴多主观评价,过于偏激;徐铉述多作少,较为审慎。然后,提供了学术史这样一个宏观文化视角,据此考察了徐锴、徐铉、李阳冰各自著述特点的成因。 Xu Xuan’s “Shuo Wen Jie Zi” and Xu Yi’s “Shu Wen Wen Shu” have all cited Li Yang Bing’s comment on “Shuo Wen Jie Zi”. The difference between the predecessors or the two, but did not fully analyze the similarities and differences between the two cited the views of Li Yang Bing. Based on the similarities and differences, this article concludes that both of them agree with Lee’s point of view that they refute Yang Bing. However, the two have different opinions on how to deal with the problem. Xu Xuan often subjectively evaluates and is over-extreme. Xu Xuan’s remark is more and less cautious. Then, provided a macroscopically cultural perspective of academic history, and then investigated the causes of the respective characteristics of Xu Xun, Xu Xuan and Li Yang Bing.