情態動詞「會」在前人的研究當中，具有許多不同的功能，例如表能力、表預知、表一般特性等不同的功能。本論文採用Monosemy View，認為「會」在語言表面上所呈現出之不同用法，並不是武斷毫無關係的，而是存在著非常密切的語意關連性。再者，透過此觀點，我們希望嘗試找出這些不同功能之間的語意關係。本研究提出三個假設如下：第一，情態動詞「會」有一個語意核心，表說話者對於句子命題的體現(realization)，有著非常高的把握；第二，情態動詞「會」在句子裡擔任一個運符(operator)的角色，其作用是將說話者對此句子的語態加諸在此句子之上；第三，本篇論文提出「會」所呈現出許多不同的功能，是經由情態動詞與句子之情態內容所交互作用的結果。 / Carrying multiple functions--such as ability, prediction and generic--the modal verb hui in Mandarin Chinese has been extensively studied by previous researchers. This thesis, following the monosemy view, claims that the various functions of hui are not arbitrary, but closely related to one another. To account for the correlation between the various functions of hui, this thesis proposes three hypotheses. First, hui denotes assurance, indicating that the speaker’s attitude towards the realization of the propositional content is full of high assurance. Secondly, hui functions as an OPERATOR of the proposition denoted by the sentence. Thirdly, hui's multiple functions are context-derived. This thesis maintains that it is the interaction between the modal verb hui and the sentence’s proposition that results in the different functions carried by hui.