本文目的在于通过对法律英语中“shall”的特点进行语义、语用方面的研究,解决“shall”在法律语言中由于其多义性造成的翻译困难。本文首先从语义学的角度总结出法律英语中“shall”的基本特征,即多义性,又通过语用学的角度对“shall”的含义进行进一步的研究,并根据言语行为理论和言外行为理论对“shall”进行了分类,分别是表达类,指令类,承诺类。作者基于实例分析指出了这四种情况下“shall”的隐含意义并就这四种类型的“shall”给出对应的翻译。 The purpose of this paper is to study the semantics and pragmatics of the characteristics of “shall ” in legal English so as to solve the translation difficulties of “shall ” in the legal language due to its ambiguity. This paper first summarizes the basic features of “shall ” in legal English from the perspective of semantics, that is, polysemy, and further studies the meaning of “shall ” from a pragmatic point of view, Theory and extranodal theory of the “should ” were classified, respectively, the expression class, instruction class, commitment class. Based on the case study, the author points out the implication of “shall ” in these four cases and gives corresponding translations for these four types of “shall ”.