Abstract: Airborne geophysical survey is conducted along the route programming with the application of GPS. Line data constitute the foundation of airborne geophysical data processing and interpretation and are distinguished by the line indexes. The development of un?attended operation without human intervention might result in the loss of line indexes. Based on an analysis of the operating characteris?tics of the aero?geophysical survey, the authors put forward the unattended line index editing design scheme, and developed the line in?dex automatic editing software which uses the plug?in technology on the GeoProbe geophysical software platform, thus improving the work efficiency of airborne geophysical field.