Abstract: The electrical resistivity of soils is dependent on solid components,pore water,microstructure and environmental characteristics of soils.Therefore,electrical resistivity of soils is affected by various factors, including soil type,water content,saturation,temperature and pore fluid property et al.The soil electrical resistivity can be measured non-destructively by placing electrodes on the soil surface,applying a voltage and measuring the current.In the laboratory measurements of soil electrical resistivity,the number of electrodes(two electrodes or four electrodes),current types(DC or AC) and the frequency of the used AC should be considered.Practical aspects of these methods and arrangements are discussed in this paper.Based on the analyses of the theory of soil electrical resistivity and laboratory measuring techniques,the authors introduce a new practical device for the laboratory measurement of electrical resistivity,which uses two electrodes and lower frequency AC.Pilot test results show the equipment is effect and feasible in measurement of soil electrical resistivity.