A cross platform and multi node test monitoring software design method is proposed to meet the visualization monitoring requirements of radar tracks and platform position for multiple nodes in distributed system experiments, while also considering the requirements of domestic independent and controllable design. Qt is used for cross-platform design, and QtWebEngine is used to embed Web pages loaded with Google-Map to display two-dimensional GIS map. The test data is collected by network packet capture, and the radar tracks of different nodes are displayed on the map after Bowring’s coordinate transformation calculating. The test monitoring software implemented according to this method can meet the needs of the task normally, has the advantages of low development cost and short development cycle, and has good application value.