Online marketing referred to the promotion of products and services to the majority of netizens through the Internet to increase brand awareness, increase exposure, attract more potential customers, and increase sales. The main methods of online promotion included: 1 Search engine optimization (SEO): By improving the website structure, content, and keywords, the website will rank higher on the search engine results page to attract more interested customers to visit the website. 2. Search Engine Marketing (SIM): By purchasing search engine advertisements (such as Google AdWords, Baidu Promotion, etc.) to display advertisements on the search engine results page to attract more potential customers to click on the advertisements and enter the website. 3. Social media promotion: By publishing content, interaction, promotion, etc. on social media platforms, attract the attention and interaction of potential customers to increase brand awareness and recognition. 4. content marketing: through the release of valuable and attractive content (such as blog, video, comics, e-books, etc.) to attract the attention and resonance of potential customers to increase website traffic and conversion rate. 5. E-mail marketing: Increase brand awareness and loyalty by sending customized email marketing campaigns to potential customers to promote products and services. Online promotion is an important means to increase brand awareness, increase exposure, and attract more potential customers. It can help companies increase the value of products or services, increase sales and profits.