Online promotion referred to the use of various channels on the Internet to spread information about products, services, brands, and other products of companies or individuals to all parts of the world to increase brand awareness and influence. The main work of online promotion included the following aspects: 1. product promotion: promote corporate or personal products to potential customers through websites, social media, emails, etc. to increase product awareness and sales. 2. Service Promotion: Through websites, social media, emails, etc., promote the company's services to potential customers to increase service awareness and satisfaction. 3. Brand Promotion: Through various channels such as social media, search engines, advertisements, etc., the company's brand will be promoted to the world to increase brand awareness and influence. 4. Marketing interaction: interact with customers, understand customer needs, and provide customized marketing services to improve customer satisfaction and loyalty. 5. Data analysis: Through data analysis and monitoring, we can understand customer behavior and market demand and adjust marketing strategies in time to improve the effectiveness and efficiency of online promotion. Online promotion was an important means for enterprises or individuals to expand sales channels, enhance brand image, and increase customer satisfaction.