Abstract: The development and evolution of information service has experienced two stages:one is taking information resource as the center, the other is focusing on information communication. Now information service is developed toward the usercentered direction. User experience of information service is becoming the focus of industry. On the basis of the international classical theories about user experience, the paper developed the model of user experience, proposed a promoted user experience model of network information service, meanwhile, it came up with the goals, direction and evaluation factors of user experience design. Finally, the essay took online groupbuying as an example to explain how to enhance user experience of network information services.

Key words: Information service, User experience, Strategy