Granite outer and inner-type uranium mineralization developed in the Puluohe area. Their geo-logical and mineralization characteristics are basically the same, and they are produced within 2 km of the contact zone. The ore body is lenticular, fine veined, less than 200 m in length, and multi-layered. Uranium minerals are mainly pitchblende and coffinite which are the mosaic and zonal textures, fine vein, network vein and breccia structures. The mineralization is thin, me-dium and low grade, and the mineralization age is 98 ± 4 Ma, which is equivalent to the Late Cretaceous. Uranium mineralization is obviously controlled by tectonics. The Gaolou large fault and the Puluohe fault control the location of the four mineralization concentration zones, and the secondary faults provide channels for deep hydrothermal migration. The low-level structur-al fracture zone and the fractured dense zone provide space for the ore body. It is pointed out that hematitization-chloritization-pyritization, silicification-black purple fluorite, hematitiza-tion-pyritization-sericite-quartz alteration are important mineralization alteration combinations in the region. It is suggested that Dadi Village 904-Yuyuangou 903, Nianpangou 8099-Siyuangou 23 are the key exploration areas for future work, and Huangjiazhuang 8050-Shangping 201 is the exploration area.