Digital Media Arts is the combination of technology and the arts has a very broad application. In modern society, PSAs is also a combination of technology and the arts. As the development of digital media arts, the forms of spread, expression language, methods of making etc. of PSAs have changed quickly. Through the analysis of forms, types, development of PSAs and the current digital media, the applications of digital media arts in the PSAs are discussed on the use of social public in this paper.