The Information Commons (IC) is a new model of integrated library service in academic library. It has become an essential part of today's academic library environment, often the most popular service and space in U. S. academic libraries. This paper presents the concept and evolution of IC, its models and characteristics. It also provides a survey data of the IC development in U. S. academic libraries and then makes suggestions for implementing innovative user-centered services in China academic libraries as follows. The IC has become a most significant trend in the academic library. The library building design should reflect the new idea of IC. It is very necessary for the library services to establish a reasonable structure of information resources. The staff with a wide variety of literacy skill is one of the key elements to enhance the library service quantity. Library services evaluation will guarantee the improvement of the library service quantity.