It is concluded for freight forwarding agents to develop integrated logistics services in the fields of talent training, service network distribution perfecting, logistics information network and supply chain management, etc.

Based on OGSA (Open Grid Service Architecture), the paper defines the logistics information networks, provides a dynamic grouping model,describes the hierarchical structure of the model,analyzes the implementation steps of logistics information network dynamic grouping and resource sharing, and finally depicts the key IT of logistics information networks, such as middleware and security.

To build a Logistics Information Network has become an important application field of the "Information Superhighway" which has been actively promoted throughout the world.

This study,based on the distance decay of information transmission theory and information flow diffusion theory,designs for the study system of distance decay effect in network information flows in China.

Information Flow Net in Supply Chain Management;