Based on the iconography study both of The Xixia Dynasty’s donors in Dunhuang Grottoes and some other art of paintings in exist, this article tries to discusses the costume culture of The Western Xia Dynasty. The article has drawn out a conclusion that in addition to retaining their own traditional dressing way, the Tangut has also extensively absorbed and adopted variety dressing style and system either from Han people of the central plain China and other ethnic groups, of which had formed into an unique ethnical dressing style. It is considered as the precious wealth in rich Chinese art in study of Chinese culture heritage.