Abstract: The S-125 standard is based on the IHO S-100 standard and serves as the product specification for maritime navigational aid services. In the future,the release of dynamic information regarding navigational marks must adhere to this standard. To facilitate the official production of S-125 products in China,an analysis of the S-125 data model was conducted,encompassing data structure,data encoding,feature catalog and coding,chart symbology,and other aspects. By generating test data for S-125 navigational mark dynamic information,the display and application of S-125 products on ECDIS were evaluated. Based on the test results,some issues with the current version of S-125 were identified,and relevant recommendations were proposed. The research findings can serve as a reference for China’s official implementation of S-125 product production.