For further research promotion on the trusted transmission of national network data, this paper sorts out the development trend of research on source address verification to analyze its research status, development trend, and research focuses in China. Taking the literature on source address verification from the CNKI database as the research data source, this study adopts the methods of bibliometrics and mapping knowledge domains and uses CiteSpace, a visual tool, to carry out information statistics, co-citation statistics, and clustering analysis on the research samples. Then, these data are used to draw the interannual variation map of the literature in this research field and the knowledge map of co-occurrence clustering and time-series distribution for further scientific analysis. The study shows that the research on source address verification in China tends to develop dynamically and the trend is stable and good. Core research strength is headed by Professor Wu Jianping with Bi Jun and Xu Ke as important research experts. Research institutions are headed by Tsinghua University along with PLA Information Engineering University, and Chinese Academy of Sciences as important participants. Next generation Internet and software-defined networks are important emerging research focuses, which reflect the future research direction and the development trend of source address verification.