Based on the result of national mineral resources potential evaluation, there is a large number of bauxite resource in southeast of Chongqing city. Therefore , it has important guidance significance to study the geophysics exploration method adapted to this area. First, this study expounded the metallogenic regularity and orebody characteristics of the area. Summed up the storage mode of bauxite. Then based on metallogenic regularity and storage modes, combined with the experience of other predecessors and regional physical differences, a program which to use electromagnetic sounding method to determine the spatial form distribution of Liangshan group stratum in order to help buried bauxite exploration is put forward. Selected Chepan mining area as a test site, did a test respectively use of controllable source (person workshop source) audio magnetotelluric sounding method (CSAMT) and high-frequency magnetotelluric sounding method (EH4) in the same profile. The data acquisition and data quality evaluation are introduced. At last, two kinds of electromagnetic sounding data were inversed by the two-dimensional continuum inversion of the human-computer interaction, and combined with the borehole data, analysis and discussed the two profiles of frequency—resistivity, then lased out the inferred geophysical results diagram.