Cities is formed by the assembly of human beings and then evolved into an organized system, in which people are the most active and creative cells. People's life and development of the cities are closely related. With the rapid process of urbanization, the interaction between cities and the biological circle as well as the resources on the earth have become more and more strong. The relationship among people, city and earth runs through the urbanization. The three will become an inseparable complex.

People are the cells as well as the spirit of cities. People give the cities their cultures, characters and uniqueness. With the urbanization, more are more people become urban dwellers. People's life is inevitably affected by the development of cities. Cities should create a good living and innovation environment for people.

The structure and network of different cities have common views as well as their uniqueness. To understand the system and development of cities and construct a sustainable, healthy city structure is the precondition of building a livable city. It relies on people's understanding of city's developing rules as well as the rational activities in daily life.

Human being, creator of good life, is the core to push the city development as well as the most creative part in the urbanization; hence, the designing of the mascot chose the Chinese character of people to be the main image. The blue color mascot represents the elements including earth, dream, sea, future, technology and manifests the theme of World Expo "Better City, Better Life."

The image of the mascot is simple, easy to remember and to communicate. Though it is a single mascot, with the different motions and costumes, it could also have various appearances.

Water is the source of life. The main character of the mascot is water. The blue color stated Chinese brand-new gesture to embrace the world.

Hai Bao embodies ideal of the coexistence of different cultures in cities; embodies the appreciation of economic development and environmental sustainable development; embodies the wish to remodel the city communities, embodies the anticipation of the well-off both urban cities and countrysides. Hai Bao is the whish to colorful life and the warm invitation to friends from all over the world to Shanghai.