Abstract: There are many Yanshanian granite intrusions in eastern Hebei, which constitute a good metallogenic background of granite-type rare metal deposits. In order to study the metallogenic prospects of these rock masses, the authors chose the Hanerzhuang granitic body in this area as the research object, and carried out the multi-channel energy spectrum survey to analyze the characteristics of radioactive parameters of different lithologies, the characteristics of radioactive anomalies and their relationship with rare metal mineralization. The results show that the average content of U, Th and total trace in the monzogranite is 9 times, 8.5 times and 3.9 times the background value in the whole area, respectively. The distribution characteristics of the anomaly field are basically consistent with the surface outburst form of the monzogranite. Combined with the results of petrogeochemical study and artificial heavy sand, the authors hold that the monzogranite whole rock has a good mineralization of rare metals. The rocks contain a large number of U, Th and Hf minerals such as yttrium-brown niobium ore and monazite, and these minerals have a symbiotic relationship with Nb, Ta, Rb and other rare metal minerals. According to the distribution of anomaly field and the characteristics of thorium potassium, thorium uranium, uranium potassium ratio and other parameters, the favorable areas of rare metal mineralization can be directly delineated to guide the arrangement of prospecting engineering. The effective implementation of this method provides a convenient, efficient and cheap means for the exploration of rare metals in the granite area in the future.