Abstract:Zoujiashan uranium deposit, located in Le’an county, Jiangxi Province, is an important once in the western area of Xiangshan uranium ore field, and famous by its larger scale and higher uranium grade. The ore-bearing fracture system of Zoujiashan uranium deposit is composed of several arcuate fault and these lenticular rock surrounding by arcuate fault. The ore-bearing fracture, trending mainly along north-south and partly north-east-north and north-west-north, is bring based on X-type shear joint and by continued deformation. The NNE-trending ore-bearing fault being a few left-slip movement while the mineralizing fluid enter the fault and infulling and metasomatism. The arcuate and irregular uanium ore veins in different direction indicated the higher pressure of mineralizing fluid with hygraulic fracturing to the rocks. In fact, the ore-bearing fracture propagate from high degree to lower degree or micro once while minerlization occurs at high fluid pressure. The ore-bearing fracture system in the Zoujiashan uranium deposit is controlled by a high degree hidden fault with NEE-trending and at low-middle angle dipping to northwest, but not by the Zoujiashan-Shidong fault with NE-trending and at high angle dipping to northwest. So, the further prospecting in the Zoujiashan uranium deposit is at the north-west-northern area of present ore belt.