Cities along the Taihu Lake like Suzhou, Wuxi, Changzhou, and Huzhou have different levels of tourism competitiveness. Suzhou is the most competitive, followed by Wuxi, Changzhou, and Huzhou. By working together, these cities can benefit from each other's strengths and improve regional tourism. They should focus on enhancing cooperation, government support, environmental protection, developing new tourism products, and promoting the image of Taihu Lake to attract more tourists from both domestic and foreign markets.