Abstract:Through study, it is found that although geotectonic environment, rock characteristics and characteristic minerals of the primary diamond deposits in the world are different, there is a strong common characteristics in orecontrolling geological conditions, geophysical and chemical characteristics, diamond characteristics and prospecting methods. The primary diamond ore prospecting has the characteristics of large investment, long working period and high risk. Its prospecting technology and methods have their own particularities. On the basis of previous research results, geotectonic environment, orecontrolling geological characteristics, diamond and its indicative mineral characteristics, geophysical and geochemical anomaly characteristics have been summarized, a comprehensive prospecting model for primary diamond deposits combining with the exploration method of prospecting primary diamond deposits has been established. It has a certain guiding significance for the exploration of primary diamond deposits.