Located on the north margin of Nakhon-Khorat basin, the Vientiane Basin of Laos has one of the largest solid potash deposits in the world. The main orebody is closely related to thick-bedded Carnallite, and locally associated with thin-bedded potassium. The authors' company has completed 3 AMT profiles in a mining area in northeastern Vientiane Basin. The 2D inversion results reflect directly the fluctuation of salt beds in Tagong Formation and the distribution of structures. The spherical high-resistivity uplifts exist in the western part of Line L2 and the central and western part of Line L3. Drilling detected the spherical high-resistivity uplift as the salt bed with salt layer becoming shallower and its thickness becoming larger. The structures on both sides of the uplift area are well developed. AMT 2D inversion model basically reflects the salt layer uplift completely. The roof burial depth of salt rock exposed by L1 line boreholes is in good agreement with the result of two-dimensional electrical model inference. In a word, through the comparison between the AMT 2D inversion models and the data of boreholes near the profiles as well as the results of geological and geophysical prospecting, it is shown that the 2D electrical model obtained by AMT reflects the occurrence state of salt beds and the location of structural development. Therefore, the characteristics of salt beds and the structures reflected by AMT inversion models can provide the evidence for the optimization of prospecting target areas, selection of drilling sites and the metallogenic research. The results obtained by the authors provide a positive reference for the selection of geophysical methods for potash mineral exploration in the future.