中文摘要：

运用认知语言学理论探讨索绪尔语言符号观，说明语言符号是任意性与理据性的统一，阐明了所指的切分与语言使用者的概念化有关，并且会发生心理固化，证明了符号昭示百科知识性和动态性，这种动态性主要体现在能指／所指范围的波动，而且这种波动可由原型理论加以解释。

英文摘要：

From the perspective of cognitive linguistics, this paper explores Saussure＇s ideas on linguistic signs. It is demonstrated that arbitrariness is balanced by motivation in linguistic signs and the segmentation of signification is tied to the conceptualization of different language users and undergoes psychological entrenchment. Furthermore, linguistic signs are encyclopedic and dynamic in nature. In addition, the dynamics is reflected in signifier/signified fluctuation, whicn can be interpretated with the aid of prototype theory.