Abstract: The increasing popularity of network applications has touched various aspects of human daily activities. In order to study network interactive behavior better, the network information flow was abstracted as a form driven by the relation of information resource supply and demand. The drive of supply and demand was described by physics concept as the gravity between a pair of nodes. A conditioned energy network model which is not based on details of network behavior mode was built and divided into energy network status and chaotic network status according to the concept of "relative energy". At last, the feasibility that information flow behavior could be studied by the network rule having the mean of energy was verified. It was demonstrated that the model could express information flow behavior of real networks briefly and accurately, had a profound and lasting significance in universality of the application of network strategics and consistency of network study.

Key words: Network model, Energy network, Information flow, Resource supply and demand, Driving force