When users try to get Information over the Internet, Information overload has become a serious problem.So we propose to use intelligent information retrieval IIR agents as a solution to this problem.Based on the analysis of the features of retrieval system, including intelligent search, navigation guide, auto-notification, personal information management, dynamic personalized Web pages, and tools for page reading-aide, we discuss the responsibility of each component of intelligent information retrieval agent and how to organize these components to perform various functions to settle above problem, referring to the modularization structure of agent. Intelligent agent is doable and efficacious to increase the efficiency of information retrieval and to lighten network jam by preliminary practice.