News aggregation platforms provide news content without permission from copyright holder by using search engines，data mining and other technologies. This article discusses copyright infringement of deep linking. Deep linking behavior of news aggregation platform does not constitute direct infringement to the right of information network broadcasting based on the written judgment of “Tencent v. Yilanweida” case and the analysis on “Substantive substitute standard” and “Server standard”. Meanwhile the news aggregation platforms that show news content of other sites without permission shall bear tort liability of unfair competition based on the principle of American hot news piracy and Unfair Competition Law of our country. The purpose of judging news aggregation platform behavior illegality is enforcing change of management mode，which will give news producer a certain material return and avoid the tragedy of the commons.