Abstract: Internet information is crucial to the formulation and implementation of public policies.The article first analyzes the impact of Internet information on public policy information sources,information transmission in the hierarchical principal-agent relationship,and the effect of public policy implementation in the context of the Internet.Second,based on the above-mentioned impact mechanism and the premise that the government can establish a special information management agency to strengthen the collection,transmission and policy implementation of information,a public policy implementation benefit model covering Internet information is constructed on the base of Talllocks hierarchical distortion model;subsequently,this article analyzes the model and finds that the government can “force” departments at all levels to transmit public policy information as authentically as possible by controlling the information sources,or monitoring the information transmission in the government agency hierarchy through network information and netizen public opinions,so as to improve the effectiveness of public policy implementation.The government can also improve the effectiveness of public policy implementation by coordinating the level of principal-agent relationship and the span of control of government network information management department.Finally,based on the main conclusions,relevant countermeasures and suggestions are put forward.

Key words: Internet information, public policy, public policy implementation, public policy implementation benefits