After a period of enlightenment，germination，exploration and rapid growth，China’s Internet advertising market has entered a period of gradual development. From 2016 to 2020，the proportion of Internet advertising in the overall advertising market has continued to rise. At present，Internet advertising accounts for more than 50% of the overall advertising market，which is the main component of China’s advertising market. In 2020，the annual revenue of Internet advertising in China was 497.161 billion yuan，an increase of 13.85% over 2019，and the growth rate slowed down by 4.35 percentage points over the previous year，still maintaining the growth trend. In 2020，the media channels in the Internet advertising market will present a 1+N pattern，and the e-commerce platform will firmly occupy the top spot in the advertising channels. The short video media will have the fastest growth rate，while the search media revenue will decline and the proportion will decrease year by year. The industry boundaries of media attribute platform，social attribute platform and e-commerce attribute platform are gradually blurred，and the business ecology is constantly merging. Advertisers pay attention to the advertising mode of “raising brands with efficiency”，and the era of nationwide live broadcast begins.