In today's researches on semiotics of art, one standpoint insists that art is a representation sign in the sense of Peirce's semiotics.In the view of Peirce's representational semiotics,"sign”is the same as “representamen”, which means that the thing that stands for the object is absent.And the three parts of Peirce's Semiotics, the sign, the object and the meaning are not to be present at the same time, thus the meaning of the sign always exists outside the sign.The classification of art as a representation sign is not only challenged by both art theory and practice in the contemporary context,but also causes a paradox of semiotics and difficult problems of artistic meaning. In essence, art is not an absent representation sign,but an appearing presencing sign. As a presencing sign,art does not stand for an absent object, but has its own being and relevant meaning. It is a meaningful or significant sign occurring in a certain time and place.Here, the existence and the meaning of the sign are simultaneously presence and an integral generation. Proposing the concept of “presencing sign” can help not only to better understand the nature of the art sign,the ontology of art, but also to better understand the characteristics of the art sign related to the activities of characters,such as thingness, eventness, displayness, embodiment, fieldness, and so on.