This book establishes a measurement index to quantify China's mass media public credibility, based on extensive research and the encapsulation of measurement theories and approaches related to media public credibility, as well as numerous empirical case studies from the international academic community over the past hundred years. The investigation into the current state of Chinese mass media public credibility and discussion on practical approaches to enhancing such public credibility is highly significant in the context of research on media public credibility. The book focuses on two fundamental issues: i) investigating the basic factors the Chinese audience values as the yardstick for media credibility, and ii) formulating a media public credibility measurement scale. Relying on data from investigations, the authors analyze the importance of various assessment benchmarks for measuring media public credibility and the characteristics of public credibility assessment. Lastly, a measurement scale is created by screening and analyzing measurement indices with statistical methods such as exploratory and authenticated factor analyses and credibility and validity testing, which is of high theoretical and practical scientific value.