Abstract: In view of the remote sensing of UAV (unmanned aircraft vehicle) which carries multiple payloads, a task planning method was studied to get more useable results. According to payloads’ different requirements on flight altitude, flight speed and so on, the task planning method commonly includes route planning and payloads planning. The method based on XML (eXtensible Markup Language) modeling remote sensing can develop universal standards for task planning norms, improve the UAV remote sensing flight efficiency and adaptability. Using KML (Keyhole Markup Language) to demonstrate the planning results on Google Earth, real time planning results can be visually displayed on GISbased user interface and obtain effective assessments.