Online media serves as the central platform for information dissemination; however, the rise of information disorders threatens the credibility and authenticity of public information. In China, the transformative impact of the digital age has intensified these disorders, significantly altering the media ecology. This study investigated the underlying mechanisms of information overload, algorithmic intervention, and audience polarization, which contribute to the phenomenon of information disorders. By analyzing the roles of content producers, distribution mediums, and audiences within the Chinese context, the study offers a comprehensive understanding of these dynamics. Furthermore, addressing information disorders within the digital media ecosystem has become a critical global challenge. Through a systematic literature review, this study explored potential strategies for mitigating these disorders in China, emphasizing the application of constructive journalism. The constructive journalism framework is proposed as a set of journalistic norms that can foster a healthier and more sustainable online media environment. By enhancing professional ethics, clarifying the instrumental rationality of technology, and employing positive psychology, this approach aims to reduce audience polarization and realize the public value of information dissemination.