From the identity of advertisement publishers, public service advertisements can be divided into three types. The first one is the public service advertisements directly produced and released by TV stations, newspapers and other media. For example, CCTV often publishes such advertisements. This is the political responsibility and social responsibility of the media. Second, public service advertisements issued by social specialized agencies. For example, UNESCO, UNICEF, the World Health Organization and the International Wildlife Conservation Organization have respectively issued public service advertisements such as "Protecting cultural heritage", "Children have the right to education", "Don't discriminate against AIDS patients" and "Protecting rare animals". Most of these public service advertisements are related to the functions of publishers. The third kind is the public service advertisement released and produced by the enterprise. For example, Boeing has published public service advertisements such as "bringing people together", and Ericsson has published "Care comes from communication". Enterprises have not only done good deeds, but also established their own social public welfare image.
From the perspective of advertising carrier, it can be divided into media public service advertisements, such as advertisements published on TV and newspapers and outdoor advertisements, such as public service advertisements on stations, buses and road signs.
From the theme of public service advertisement, it can be divided into political policy topics, such as 20 years of reform and opening up, welcoming the 50th anniversary of the founding of the People's Republic of China, rejuvenating the country through science and technology, democracy and legal system, and helping the poor. Festivals, such as May Day, Teacher's Day, Double Ninth Festival and Arbor Day. Social civilization, such as protecting the environment, saving water and caring for the disabled; Health categories, such as smoking ban, national fitness, like eyes, etc. ; Social focus categories, such as laid-off, counterfeiting, pornography and illegal publications, drug control, hope project, etc.