Abstract: A large number of salt-bearing rock systems were deposited in the Paleocene Shashi and Xinguzui group of the Jiangling depression, and various types of salt-ridge formations were formed under the influence of the Xishan movement.To clarify the distribution characteristics of potassium-rich brine in the Jiangling depression, we focus on the stratigraphic, fracture, and tectonic distribution characteristics of the Jiangling depression, and investigate the influence of the salt-ridge tectonic system on the distribution characteristics of potassium-rich brine.By analyzing the formation and evolution of the salt structure in the Jiangling Depression, it is concluded that the secondary depressions controlled by the Salt Rise Tectonics were formed at different stages of salt deposition, and brine from different stages was collected, which became the key place for salt accumulation.The potassium ions of the brine in the Jiangling depression mainly originate from the igneous rocks associated with the fractures.Potassium-rich brines are mainly distributed in the lower part of the Xinguzui group and the strata of the Shashi group, whose brine reservoirs include: sandstone reservoirs (Lijiatai area), volcanic reservoirs (Shashi and Fanjiatai area), and fracture zone reservoirs (Nangang area).The highly mineralized potassium-rich brines are widely distributed in the Jiangling depression and have a large exploration potential.