The promotion of Sichuan Chengdu Qingxia Mountain Residence focused on digital marketing and utilized the 4I theory - Interesting, Interests, Interaction, and Individuality. Located in the international tourism resort of Qingcheng Mountain, the residence offered unique scenery and cultural attractions. The marketing strategy showcased the peculiar design of the products and aimed to spur the interest of potential customers through a combination of scenery, customers, and products. Visitors were encouraged to share their experiences on platforms like TikTok, Weibo, and Little Red Book, and were provided with incentives to increase visibility. Collaborations with key opinion leaders (KOLs) enriched the content. The outcomes included increased popularity, higher sales, and repeat customers. Challenges included maintaining the momentum of digital marketing and sustaining customer interest.