The gold-bearing breccia bodies in the Shuangwang gold deposit, Shaanxi, which are identified to be hy-drofracturing breccia bodies, are formed by hydrofracturing of the deep-seated gold-bearing and alkali-rich fluids in the Devonian hydrothermal sodium-rich rock series. In the early period, the progressive coaxial compression caused the competent sodium-rich rock series and the uncompetent pelitic rock series to deform and partition , forming a lens-like weak-deformation domain distributed at approximate equidistance and a linear strong-deformation zone respectively. Among them, the core of the weak-deformation domain is a natural lens-like pumping centre with relatively low temperature,low pressure and high permeability. In the late period, the progressive uncoaxial shear of right-lateral and high-angle oblique thrusting caused the most developed joints and fractures in the core of weak-deformation domain to turn from compressional to extensional, and linked up with deep fracture systems. The large pressure decline in the pumping centre caused the deep-seated confined fluids to develop periodic tectonic pumping, hydrofracturing and precipitation healing in the sodium-rich rock series. The buried gold-bearing hydrofracturing breccia bodies predicted on the basis of the partitioning deformation tectonic type have been proved by drilling. h