应该从文字构形角度关注古文献数字语料库的异形字问题。异形字分为笔画异写字与部件异构字,在处理时应采取不同的策略。异形字的处理策略直接关系到古文献资料库的字符集平台的字量与古籍文本化过程。 We should pay attention to the problem of alphanumeric characters in the ancient literature digital corpus from the perspective of text composition. Abnormal characters into different strokes and different parts of the word structure, in the treatment should adopt a different strategy. Alien characters processing strategy is directly related to the ancient literature database character set platform and ancient text formatting process.