With development of the national economy,groundwater resources have been over-exploited in many areas of the country,which has led to serious problems in land settlement.Uneven settlement has induced many ground fissures,resulting in serious environmental problems and considerable economic loss.It is therefore extremely important to conduct studies on the three-dimensional geological structure of uneven settlement and ground fissures.In this paper,a network parallel electrical prospecting system is used with a physical model of a basement buried within a hill,to determine and measure the response of the geoelectric field during the process of soil cracking under the condition of water injection.Results show that changes in electric potential,current,and resistivity in the soil are closely related to water content,together with changes in the soil water content,electric potential,excitation potential,excitation current,and apparent resistivity change sharply.When water flows through the soil,the spontaneous potential,primary field potential,and exciting current rise quickly,but apparent resistivity sharply decreases.In addition,when apparent resistivity is large,soil deformation is also large,and there is danger of the development of ground fissures.Monitoring of electrical parameters can thus be used to warn of impending disasters.The inversion information obtained from the network parallel electrical prospecting system in this experiment shows that it is easy to induce uneven settlement and cracks at points of large curvature.The greater the degree of uneven settlement,the greater the length,width,and depth of the crack.The use of a network parallel electrical prospecting system for determining ground fissures is a novel idea that produces good results,and can be used as a reference in future research or to provide a new method and perspective for predicting geological disasters.