1. Raise public awareness of the challenges of the "urban age" and provide possible solutions;
2. Promote the protection of urban heritage; Make people pay more attention to healthy urban development;
3. Promote the concept of sustainable urban development, and successfully practice and innovate technologies; Seeking a sustainable urban development model in developing countries;
4. Promote the communication, integration and mutual understanding of human society.
The significance of hosting the World Expo in China;
It can show China's great achievements since the reform and opening up, establish a good international image of China's peaceful development, and enhance the friendly cooperation between China and other countries in the world. It can further enhance China's global development, expand its influence and bring rare opportunities for China's further development in the future.