Based on its function and the property in the traffic system and the future development requirements, the bridge with advanced technology should not only be safe, durable, and economical, but also adhere to the principle of aesthetics and environmental protection. Furthermore, consider the local conditions and materials easy to construct and maintain, etc. The bridge should have the graceful shape from any view. The structure must be simple and concise, and also have the harmonious space. Meanwhile, the bridge should have the reasonable structure and outline.