“The importance of verifying the authenticity of remote sensing products in the field of remote sensing data application services is self-evident. In order to improve the application quality of remote sensing data products and ensure the sustainability of services, domestic and foreign researchers have been committed to building remote sensing product authenticity verification stations for many years. However, due to the complexity of land surface processes and observation targets, the diversity of remote sensing satellite payload products, and the dynamic evolution of land remote sensing products, the theoretical application and technical implementation of the entire process still face challenges. This article provides an in-depth analysis of the current status and development trends of ground observation networks for verifying the authenticity of remote sensing products, ground reference truth acquisition technologies, and comprehensive testing services for remote sensing products both domestically and internationally. On this basis, the article starts with the systematization of theoretical methods and proposes a method system framework for the authenticity testing field network of land observation satellites, based on the spatial variation theory of geostatistics, the uncertainty theory of econometrics, and the optimization theory of operations research. It studies the spatial representation of the authenticity testing field network, the measurement and transmission of measurement benchmark uncertainty, the comprehensive weighting synthesis of multi-channel testing results, and the optimal matching of sample sets and products to be tested. To meet the application needs of major national space infrastructure projects and key common products, the article also proposes the coordinated construction and improvement of a network of authenticity verification stations, an aviation collaborative authenticity verification system, a benchmark reference construction and transmission system, and a high-precision verification service system, in order to form a technical solution for authenticity verification of land observation satellite remote sensing products that is in line with China's actual situation. This study not only helps to improve the theoretical and methodological system of authenticity testing field networks, but also promotes the full utilization of domestic land observation satellite remote sensing data, further enhancing the quantitative application level of remote sensing data products. It has profound significance for promoting the development and application of remote sensing technology.”