Abstract: There are stable crystalline basement and deposition covers as well as faults that cut the mantle in depth, which is beneficial to kimberlite formation in the Ordos old land. Kimberlites were discovered in Liulin area of Shanxi Province. Kimberlites, potassiummagnesium lamprophyres and kimberlite-like rock related to diamond formation were found in Yingxian and Datong area of Shanxi Province, and a small amount of diamonds and a large amount of chrome spinel-indicating minerals were also found. Two chrome spinel-indicating mineral anomalies in the Xinmiao area of Inner Mongolia and the Dianta area of Shaanxi Province were delineated. Annular structures related to kimberlite magmatic activity was also found in the Dianta area of Shaanxi Province. There are metallogenic conditions and prospecting potential of original diamond in the Ordos old land.