Some CCTV public service advertisements are funded by enterprises, but the earliest CCTV public service advertisements are funded by TV stations. According to the articles published by the headline in the user advertising circle in Zhihu, we can know that the comprehensive launch of the socialized cooperation mode of public service advertising was announced at the CCTV 20 16 public service advertising resource seminar. CCTV has been actively communicating with enterprises, exploring the socialized cooperation mode of public service advertisements, and realizing the brand win-win situation between CCTV and enterprises. Many socially responsible enterprises have had successful cooperation with CCTV. Public service advertising helps to show the social responsibility and responsibility of enterprises, so that consumers can subtly strengthen their understanding of enterprises while accepting the concept of public welfare, which invisibly affects consumers' brand choice tendency and is of great help to brand building.