Abstract: GEO satellites play a significant role in COMPASS satellite navigation system. So it has important significance using other orbit measurement system for its precision orbit determination, besides using itself pseudo-range and phase measurement. Observing data has been obtained through transponder ranging system build by National Time Service Center, Chinese academy of Science. This paper do the orbit determination for COMPASS-GEO satellite using transponder ranging data, analyze the accuracy of orbit determination through measurement accuracy, orbit residuals and orbit overlap respectively.