Due to the use of advanced technology the new media applications are widely adopted all over the whole society, which has accelerated the development of advertising with the more efficient channels provided by the new media. Public advertising which is the essential tool to arouse the common will or awareness should be explored under the environment of new media applications. This book illustrates the definition of public advertising as well as an initial development process. After an overview of the development and existing problems in China's public service ads, a case study was conducted which provides insight into the current situation of China's public service ads and suggestions were then given.