Differentiating the Name of "Yin-Shang"

Yin-Shang culture is one the Chinese civilizations of ancient times.The question of its state reference is worth our discussion and has attracted the attention of many scholars.Based on inscriptions on bones or tortoise shells of the Shang Dynasty,inscriptions on bronze in the Shang and Zhou dynasties,and documents of West Zhou Dynasty,this paper points out that the separation and combination of Yin-Shang has particular meanings and Yin and Shang have different references.