皮尔士不仅是美国著名的哲学家还是一位著名的逻辑学家,在哲学史上被称之为实用主义奠基人之一。在他的思想成熟时期,其对逻辑学的研究重心逐渐转向于符号学,这在很大程度上对哲学认识论、自然科学和社会科学等各个领域的发展、研究以及传播起着非常重要的作用,同时也对后来人们得研究起了推动作用。本文主要从皮尔士对符号的定义、符号三要素以及对符号分类等几个方面,对其符号学的基本内容做一探讨,旨在提高人们对“符号学”这一理论的认识。 Peirce is not only a famous philosopher in the United States, but also a famous logician, one of the founders of pragmatism in the history of philosophy. At the mature period of his thought, his research focus on logic gradually shifted to semiotics, which played a very important role in the development, research and dissemination of philosophical epistemology, natural sciences and social sciences to a large extent , But also later promoted the research of people. In this paper, Peirce mainly discusses the basic content of semiotics in terms of the definition of symbols, the three elements of symbols and the classification of symbols, aiming to raise people’s awareness of the theory of semiotics.