Electronic map is a common monitoring application in civil aircraft flight test, which is used to reflect the position, track and airspace of flight test aircraft in real time. However, the traditional electronic map has a single function, and has shortcomings such as unable to dynamically update the airspace, unable to replay after flight, and unable to support centralized monitoring of multiple aircraft, which cannot meet the current test flight safety monitoring requirements. Based on GMAP. NET component, a new real-time monitoring software for two-dimensional electronic map has been designed and developed, which adopts time series database,dynamic layer and other technologies to realize the real-time monitoring of the test flight tracks of multiple aircrafts, and also supports the storage and playback of track information and the online update of airspace information. Through the field test of large passenger aircraft, the software can meet the safety monitoring requirements of the test flight track.