Abstract: Spacecraft relative motion dynamics is core content of space service principles and it focuses on two spacecraft relative motion laws based on target orbit coordinate. The relative motion laws in space are contradictory to the relative motion laws on the ground, which pose critical challenge to students' spatial imagination. The teaching team proposed a systematic teaching technique which includes illustration method, interaction method and experimental method. The implicit relative motion model is transferred into explicit expression through formula translation. The statical formula is demonstrated by case application and the abstract relative motion law is represented by vivid pictures and dynamic animation, etc. The practice indicates that the proposed method contributes to student learning enthusiasm and the teaching quality improvement significantly.