The comprehensive and three-dimensional space-time constructed by network media has fine-grained infiltrated in all spheres of society. Medical dispute reports in the network,which always touch the public sensitive nerve,play an important role of superintendence of network public opinion. However,there also exist some mistakes which may mislead the public. In order to enhance the positive effects of medical dispute report and promote the progress of public environment,the article reflected the dishonesty in the reports,explored the real value of mainstream media,then suggested moral norm construction in the network communication space.