在身體活動情境中，成就目標理論一直是用以探討個體的動機與行為反應的重要學理基礎。近年來，隨著學理的發展與改革，成就目標拓展為3 × 2的理論架構，並於學業領域中初步獲得驗證。本文旨於探討成就目標理論從二向度至六向度的沿革，以及該理論於身體活動情境中的適用性，期盼能在學理發展與應用上有所助益。

Achievement goal theory (AGT) has been applied to examine the individual’s motivation and behavioral response in physical activity. With the theoretical development and refinement, AGT has been expended to 3 × 2 structures, and has been examined literaturely in academic setting. The present article aimed to discuss the theoretical background regarding the development from 2-dimension to 6-dimension construct, as well as the application of 3 × 2 AGT in physical activity to improve the theoretical development and the practical benefits.