Abstract: Abstract：Water is an indispensable resource for human survival, and is also a bottleneck restricting the development of regional economic development. The main water supply layer in the study area is limestone fissure water. The authors utilized the DC resistivity method to look for groundwater resource. Two survey stations were arranged, with the total length of 610 m, the network parallel electrical method instrument WBD-GD was adopted to collect data, the three-dimensional inversion software was used to realize 3D imaging, and six horizontal slices were selected at different depths so as to roughly determine the locations of the water source wells. The results determined not only the planar locations of the water sources wells but also their rational depths. Verification shows that the achievements obtained by the authors are very effective, which guarantee the production and life of the stone factory in the mountain area.